constitution · epochs · watch · epoch 3

comparison

c_3f420a1f5aa1 (tommy-mor) vs c_fbeec5c4ad18 (tommy-mor)

download prompt · raw event · cmp_4f26ef36ea72d3

council reasoning

~anthropic/claude-sonnet-latest · winner B · 3:2 · permalink

Side B changes the core ranking algorithm from author-level to per-commit pairwise ranking, fixing a real correctness gap (same-contributor multiple commits were never compared) and adds rollup logic, updated evidence schema, epoch page rendering, and new/updated tests covering the behavior. Side A is a sizable but purely additive UI feature (theme cookie/selector) plus a room-URL helper refactor, useful but narrower in scope and lower architectural impact than B's fix to the ranking/reward mechanism.

~x-ai/grok-latest · winner B · 2:5 · permalink

B fixes ranking to pairwise-compare every eligible commit (not bundled per author) and only short-circuit on a single commit, with rollup scores, evidence fields, epoch UI, and tests—a lasting fairness design for emissions. A’s theme cookie/POST work is real UX polish plus useful private-room wire URL helpers, but much of the diff is repetitive layout/jar plumbing rather than core design.

openai/gpt-chat-latest · winner B · 4:1 · permalink

Side B changes the core ranking algorithm from contributor-level comparisons to pairwise ranking of individual commits, removes the incorrect single-contributor short circuit, rolls commit scores back up to contributors, updates evidence/UI, and adds tests covering same-contributor multi-commit behavior. Side A mainly implements persistent theme handling across pages and login plus room-aware URL generation, which is useful, but it is largely feature integration rather than a fundamental correctness improvement to the project's ownership allocation logic.

sides

A — c_3f420a1f5aa1 (tommy-mor)

message

[2fe70b0e] themes

diff preview

diff --git a/server/src/api/auth.rs b/server/src/api/auth.rs
index 559db65de14c6157690ffbf18eca0cf65b0a5202..b3631b06153d52f88348fef927e7a024b7b85ad6 100644
--- a/server/src/api/auth.rs
+++ b/server/src/api/auth.rs
@@ -1,7 +1,7 @@
 use axum::{
     body::Body,
     extract::{Path, Query, State},
-    http::{header, HeaderMap, HeaderValue, StatusCode},
+    http::{header, HeaderMap, HeaderValue, StatusCode, Uri},
     response::{IntoResponse, Redirect, Response},
     Form, Json,
 };
@@ -17,7 +17,7 @@ use crate::{
     events::{Event, GrantAdded, TokenIssued, UserRegistered},
     html::{
         auth_complete_page, auth_signed_in_fragment, choose_username_error_fragment,
-        choose_username_page, JsBuilder,
+        choose_username_page, theme_cookie_header_from_jar, theme_from_jar, theme_next_from_uri, JsBuilder,
     },
     identity::{parse_agent, parse_username},
     reducer::ReducerState,
@@ -48,15 +48,17 @@ fn js_form_error_fragment(session: &str, error: &str) -> Response {
         .into_response()
 }
 
-fn js_signed_in_fragment(bearer: &str) -> Response {
+fn js_signed_in_fragment(bearer: &str, jar: &CookieJar) -> Response {
     let mut response = JsBuilder::new()
         .id("choose-username-form")
         .morph_inner(auth_signed_in_fragment())
         .redirect("/auth/complete")
         .into_response();
-    response
-        .headers_mut()
-        .insert(header::SET_COOKIE, session_cookie_header_value(bearer));
+    let headers = response.headers_mut();
+    headers.append(header::SET_COOKIE, session_cookie_header_value(bearer));
+    if let Some(theme) = theme_cookie_header_from_jar(jar) {
+        headers.append(header::SET_COOKIE, theme);
+    }
     response
 }
 
@@ -69,13 +71,18 @@ pub fn optional_principal(headers: &HeaderMap, jar: &CookieJar, reduced: &Reduce
     verify_token(reduced, c.value()).ok()
 }
 
-fn redirect_with_session_cookie(public_url: &str, path_and_query: &str, bearer: &str) -> Response {
-    Response::builder()
+fn redirect_with_session_cookie(public_url: &str, path_and_query: &str, bearer: &str, jar: &CookieJar) -> Response {
+    let mut res = Response::builder()
         .status(StatusCode::TEMPORARY_REDIRECT)
         .header(header::LOCATION, format!("{public_url}{path_and_query}"))
-        .header(header::SET_COOKIE, session_cookie_header_value(bearer))
         .body(Body::empty())
-        .unwrap()
+        .unwrap();
+    let headers = res.headers_mut();
+    headers.append(header::SET_COOKIE, session_cookie_header_value(bearer));
+    if let Some(theme) = theme_cookie_header_from_jar(jar) {
+        headers.append(header::SET_COOKIE, theme);
+    }
+    res
 }
 
 async fn apply_invite_redemption(state: &AppState, invite_token: &str, grantee_username: &str) -> Result<(), String> {
@@ -286,7 +293,11 @@ pub struct AuthCallbackQuery {
     pub state: String,
 }
 
-pub async fn get_auth_callback(Query(q): Query<AuthCallbackQuery>, State(state): State<AppState>) -> impl IntoResponse {
+pub async fn get_auth_callback(
+    Query(q): Query<AuthCallbackQuery>,
+    State(state): State<AppState>,
+    jar: CookieJar,
+) -> impl IntoResponse {
     let sessions = pending_sessions(&state);
     {
         let sessions_read = sessions.read().await;
@@ -365,7 +376,7 @@ pub async fn get_auth_callback(Query(q): Query<AuthCallbackQuery>, State(state):
             }
             let cookie_bearer = bearer.clone();
             s.complete = Some((username, bearer));
-            return redirect_with_session_cookie(&public_url, "/", &cookie_bearer).into_response();
+            return redirect_with_session_cookie(&public_url, "/", &cookie_bearer, &jar).into_response();
         }
     }
 
@@ -378,14 +389,20 @@ pub struct ChooseUsernameQuery {
     pub error: Option<String>,
 }
 
-pub async fn get_choose_username(Query(q): Query<ChooseUsernameQuery>, State(state): State<AppState>) -> impl IntoResponse {
+pub async fn get_choose_username(
+    Query(q): Query<ChooseUsernameQuery>,
+    State(state): State<AppState>,
+    jar: CookieJar,
+    uri: Uri,
+) -> impl IntoResponse {
     let sessions = pending_sessions(&state);
     let sessions_read = sessions.read().await;
     if !sessions_read.contains_key(&q.session) {
         return api_error(StatusCode::NOT_FOUND, "unknown session", None).into_response();
     }
     drop(sessions_read);
-    choose_username_page(&q.session, q.error.as_deref()).into_response()
+    let next = theme_next_from_uri(&uri);
+    choose_username_page(&q.session, q.error.as_deref(), theme_from_jar(&jar), &next).into_response()
 }
 
 #[derive(Debug, Deserialize)]
@@ -396,6 +413,7 @@ pub struct ChooseUsernameForm {
 
 pub async fn post_choose_username(
     State(state): State<AppState>,
+    jar: CookieJar,
     Form(form): Form<ChooseUsernameForm>,
 ) -> impl IntoResponse {
     let canon_user = match parse_username(&form.username) {
@@ -477,7 +495,7 @@ pub async fn post_choose_username(
         s.complete = Some((canon_user.clone(), bearer.clone()));
     }
 
-    js_signed_in_fragment(&bearer).into_response()
+    js_signed_in_fragment(&bearer, &jar).into_response()
 }
 
 /// Start a browser-only OAuth flow (no CLI polling). Sets session cookie on success.
@@ -569,8 +587,9 @@ pub async fn get_pending_session(
     .into_response()
 }
 
-pub async fn get_auth_complete() -> impl IntoResponse {
-    auth_complete_page()
+pub async fn get_auth_complete(jar: CookieJar, uri: Uri) -> impl IntoResponse {
+    let next = theme_next_from_uri(&uri);
+    auth_complete_page(theme_from_jar(&jar), &next).into_response()
 }
 
 pub async fn get_whoami(State(state): State<AppState>, headers: HeaderMap) -> impl IntoResponse {
diff --git a/server/src/api/helpers.rs b/server/src/api/helpers.rs
index 81e2a55fa3abb8609b4099f91a989480336e11eb..9b71491e9f9efc44a2a4beba09be8f64bd2ff2ee 100644
--- a/server/src/api/helpers.rs
+++ b/server/src/api/helpers.rs
@@ -39,6 +39,55 @@ pub fn item_path_for_api(item: &str) -> String {
     }
 }
 
+/// Same as [`item_path_for_api`], but for private rooms ontology items are prefixed with
+/// `/r/{short}/{slug}` so the URL matches the web app (`/r/…/~/…` routes).
+pub fn item_path_for_api_in_room(item: &str, room_wire: &str) -> String {
+    let room = room_wire.trim();
+    if room.is_empty() || room == "public" {
+        return item_path_for_api(item);
+    }
+    let Some((short, slug)) = room.split_once('/') else {
+        return item_path_for_api(item);
+    };
+    if short.is_empty() || slug.is_empty() {
+        return item_path_for_api(item);
+    }
+    let Some(c) = CanonicalItemUrl::parse(item) else {
+        return item_path_for_api(item);
+    };
+    let root = CanonicalItemUrl::ontology_root();
+    let item_norm = c.as_str().trim_end_matches('/');
+    let root_norm = root.as_str().trim_end_matches('/');
+    if let Some(tail) = c.tilde_tail() {
+        return if tail.is_empty() {
+            format!("https://slug.social/r/{short}/{slug}/~")
+        } else {
+            format!("https://slug.social/r/{short}/{slug}/~/{}", tail)
+        };
+    }
+    if item_norm == root_norm {
+        return format!("https://slug.social/r/{short}/{slug}/~");
+    }
+    item_path_for_api(item)
+}
+
+/// Absolute thread URL for forum JSON (`/t/…` vs `/r/…/t/…`).
+pub fn forum_thread_web_url(room_wire: &str, thread_tag: &str) -> String {
+    let room = room_wire.trim();
+    let tag = thread_tag.trim().trim_start_matches('#');
+    if room.is_empty() || room == "public" {
+        format!("https://slug.social/t/{tag}")
+    } else if let Some((short, slug)) = room.split_once('/') {
+        if short.is_empty() || slug.is_empty() {
+            format!("https://slug.social/t/{tag}")
+        } else {
+            format!("https://slug.social/r/{short}/{slug}/t/{tag}")
+        }
+    } else {
+        format!("https://slug.social/t/{tag}")
+    }
+}
+
 /// Resolve an item path as a first-class canonical path.
 pub fn resolve_item(item: &str) -> Result<String, String> {
     let canonical = canonicalize_item(item);
@@ -188,3 +237,52 @@ pub fn vote_touches_path(a: &str, b: &str, parent_canon: &str) -> bool {
     let under = |item: &str| item == parent_canon || item.starts_with(&format!("{}/", parent_canon));
     under(a) || under(b)
 }
+
+#[cfg(test)]
+mod wire_url_tests {
+    use super::{forum_thread_web_url, item_path_for_api_in_room};
+
+    #[test]
+    fn public_room_unchanged() {
+        let u = "https://slug.social/~/a/b";
+        assert_eq!(item_path_for_api_in_room(u, "public"), u);
+    }
+
+    #[test]
+    fn private_room_prefixes_ontology() {
+        assert_eq!(
+            item_path_for_api_in_room("https://slug.social/~/topic/x", "9ab12cd/my-room"),
+            "https://slug.social/r/9ab12cd/my-room/~/topic/x"
+        );
+    }
+
+    #[test]
+    fn private_room_ontology_root() {
+        assert_eq!(
+            item_path_for_api_in_room("https://slug.social/~", "9ab12cd/my-room"),
+            "https://slug.social/r/9ab12cd/my-room/~"
+        );
+        assert_eq!(
+            item_path_for_api_in_room("https://slug.social/~/", "9ab12cd/my-room"),
+            "https://slug.social/r/9ab12cd/my-room/~"
+        );
+    }
+
+    #[test]
+    fn external_url_untouched_in_private_room() {
+        let u = "https://example.com/z";
+        assert_eq!(item_path_for_api_in_room(u, "9ab12cd/my-room"), u);
+    }
+
+    #[test]
+    fn forum_web_public_vs_room() {
+        assert_eq!(
+            forum_thread_web_url("public", "debate"),
+            "https://slug.social/t/debate"
+        );
+        assert_eq!(
+            forum_thread_web_url("9ab12cd/my-room", "#debate"),
+            "https://slug.social/r/9ab12cd/my-room/t/debate"
+        );
+    }
+}
diff --git a/server/src/api/rpc.rs b/server/src/api/rpc.rs
index 31f5fcfb4eaf4df0a9cbac532dd3dedfe3611810..5b91f5836625eedbb1cd9423168046e3fb576c17 100644
--- a/server/src/api/rpc.rs
+++ b/server/src/api/rpc.rs
@@ -27,8 +27,9 @@ use crate::{
 
 use super::auth::verify_bearer_principal;
 use super::helpers::{
-    compute_connectivity_stats, is_pair_voted, item_path_for_api, now_ms, paginate_rankings,
-    parse_parent_specs, pick_random_distinct, resolve_item, vote_touches_path,
+    compute_connectivity_stats, forum_thread_web_url, is_pair_voted, item_path_for_api,
+    item_path_for_api_in_room, now_ms, paginate_rankings, parse_parent_specs, pick_random_distinct,
+    resolve_item, vote_touches_path,
 };
 use super::validate::{normalize_room_and_thread, validate_ingest_document};
 
@@ -148,6 +149,7 @@ fn compute_scope_rank_changes(
     parent: &str,
     before: &crate::scope_rank::ChildrenRankings,
     after: &crate::scope_rank::ChildrenRankings,
+    room_wire: &str,
 ) -> Option<ScopeRankChanges> {
     fn build_positions(rankings: &crate::scope_rank::ChildrenRankings) -> HashMap<String, Option<RankPosition>> {
         let mut map = HashMap::new();
@@ -182,7 +184,7 @@ fn compute_scope_rank_changes(
         };
         if changed {
             changes.push(RankChange {
-                item: item_path_for_api(&item),
+                item: item_path_for_api_in_room(&item, room_wire),
                 before: b,
                 after: a,
             });
@@ -204,7 +206,7 @@ fn compute_scope_rank_changes(
         parent: if parent.is_empty() {
             "/".to_string()
         } else {
-            item_path_for_api(parent)
+            item_path_for_api_in_room(parent, room_wire)
         },
         changes,
     })
@@ -256,6 +258,7 @@ fn build_rank_response_for_content(
     offset: usize,
     limit: Option<usize>,
     want_percent: bool,
+    room_wire: &str,
 ) -> Result<RankResponse, RpcErr> {
     let parent_owned = parent.map(|s| s.to_string());
     let specs = parse_parent_specs(parent_owned.as_ref());
@@ -299,7 +302,7 @@ fn build_rank_response_for_content(
                     .ranked
                     .into_iter()
                     .map(|r| RankRow {
-                  

… preview truncated; 42,928 characters omitted

download full diff A

B — c_fbeec5c4ad18 (tommy-mor)

message

[c7ef287e] Rank every eligible commit with the LLM council.

Stop short-circuiting on a single contributor; pairwise-sort commits, roll scores up for emission payouts, and surface commit rankings on epoch pages.

Co-authored-by: Cursor <cursoragent@cursor.com>

diff preview

diff --git a/constitution.py b/constitution.py
index 26ba130e885e0e69fb7874ca5c3f07f42100a150..71fc46b4c9a4d7a9ea7bf319860b0db1acc4a673 100644
--- a/constitution.py
+++ b/constitution.py
@@ -503,20 +503,22 @@ def _epochs_in_ledger() -> list[int]:
 
 
 def build_pairwise_prompt(side_a: dict, side_b: dict) -> str:
-    return f"""You are ranking contributions to an open source project.
-Compare these two sides (each may be one or more commits). Decide which side contributed more.
+    return f"""You are ranking individual git commits to an open source project.
+Compare these two commits. Decide which commit contributed more.
 Return ONLY a JSON object: {{"winner": "A" or "B", "ratio": "N:M", "explanation": "..."}}
 
-Side A — commit messages:
+Side A — contributor: {side_a.get('contributor', '?')}
+Side A — commit message:
 {side_a['message']}
 
-Side A — unified diffs (full patches):
+Side A — unified diff (full patch):
 {side_a['diff']}
 
-Side B — commit messages:
+Side B — contributor: {side_b.get('contributor', '?')}
+Side B — commit message:
 {side_b['message']}
 
-Side B — unified diffs (full patches):
+Side B — unified diff (full patch):
 {side_b['diff']}"""
 
 
@@ -1518,16 +1520,28 @@ async def broadcast_js(js: str):
         await queue.put(js)
 
 
-def _author_side_for_llm(author: str, author_commits: dict) -> dict:
-    cs = author_commits[author]
+def _commit_side_for_llm(row: dict) -> dict:
+    oid = row["oid"]
+    short = oid.split(":", 1)[1][:8] if ":" in oid else oid[:8]
     return {
-        "message": "\n".join(f"[{c['sha']}] {c['message']}" for c in cs),
-        "diff": "\n\n".join(f"=== {c['sha']} ===\n{c['diff']}" for c in cs),
-        "commit_ids": [c["commit_id"] for c in cs],
-        "contributor": author,
+        "message": f"[{short}] {row['message']}",
+        "diff": row["patch"] or "",
+        "commit_id": commit_id_for_oid(oid),
+        "contributor": row["contributor"],
+        "oid": oid,
     }
 
 
+def _rollup_contributor_scores(
+    ordered: list[dict], commit_scores: list[Decimal]
+) -> dict[str, Decimal]:
+    totals: dict[str, Decimal] = {}
+    for row, score in zip(ordered, commit_scores):
+        contributor = row["contributor"]
+        totals[contributor] = totals.get(contributor, Decimal("0")) + score
+    return totals
+
+
 def _find_judgment(comparison_id: str, model_id: str) -> dict | None:
     for e in evidence_by_kind("llm.judgment"):
         p = e.payload
@@ -1546,101 +1560,106 @@ def _find_ranking_models(ranking_run_id: str) -> list[str] | None:
 
 
 async def rank_commits(commits: list[dict], *, epoch: int = -1):
+    """Pairwise-rank every eligible commit; roll scores up to contributors."""
     if not commits:
         return {}, [], {"ranking_run_id": "", "ranking_event_id": ""}
 
-    commit_ids = sorted(commit_id_for_oid(row["oid"]) for row in commits)
+    ordered = sorted(commits, key=lambda r: r["oid"])
+    commit_ids = [commit_id_for_oid(row["oid"]) for row in ordered]
     ranking_run_id = _content_id("rank", {
         "epoch": epoch,
-        "commit_ids": commit_ids,
+        "commit_ids": sorted(commit_ids),
     })
-    contributors = sorted(set(c["contributor"] for c in commits))
+    contributors = sorted({c["contributor"] for c in ordered})
 
-    if len(contributors) == 1:
+    # Nothing to compare: a single commit (not a single contributor).
+    if len(ordered) == 1:
         await append_evidence(epoch, "ranking.started", {
             "ranking_run_id": ranking_run_id,
             "commit_ids": commit_ids,
             "contributors": contributors,
             "models": [],
-            "summary": f"ranking epoch {epoch}: single contributor",
+            "summary": f"ranking epoch {epoch}: single commit",
         })
-        ranking = {contributors[0]: Decimal("1")}
+        commit_ranking = {commit_ids[0]: "1"}
+        contributor_ranking = {ordered[0]["contributor"]: Decimal("1")}
         completed = await append_evidence(epoch, "ranking.completed", {
             "ranking_run_id": ranking_run_id,
             "models": [],
-            "ranking": {contributors[0]: "1"},
+            "commit_ranking": commit_ranking,
+            "contributor_ranking": {ordered[0]["contributor"]: "1"},
+            "ranking": {ordered[0]["contributor"]: "1"},
             "judgment_ids": [],
-            "summary": f"Only {contributors[0]} is eligible; rank is 1.0",
+            "summary": f"Only one eligible commit; {ordered[0]['contributor']} rank 1.0",
         })
         await broadcast_audit(
             "ranking",
-            f"Only {contributors[0]} is eligible; rank is 1.0",
+            f"Only one eligible commit; {ordered[0]['contributor']} rank 1.0",
             progress=90,
             phase="finalizing",
             evidence_event_id=completed.event_id,
             evidence_url=_evidence_url("event", completed.event_id),
             links={"epoch": _evidence_url("epoch", str(epoch))},
         )
-        return ranking, [], {
+        return contributor_ranking, [], {
             "ranking_run_id": ranking_run_id,
             "ranking_event_id": completed.event_id,
         }
 
     if not (OPENROUTER_API_KEY or "").strip():
         raise RuntimeError(
-            "OPENROUTER_API_KEY is required when multiple contributors need ranking"
+            "OPENROUTER_API_KEY is required when multiple commits need ranking"
         )
 
     models = _find_ranking_models(ranking_run_id)
     if models is None:
         models = await fetch_top_models(n=3)
     if not models:
-        raise RuntimeError("no council models available for contributor ranking")
+        raise RuntimeError("no council models available for commit ranking")
     await append_evidence(epoch, "ranking.started", {
         "ranking_run_id": ranking_run_id,
         "commit_ids": commit_ids,
         "contributors": contributors,
         "models": models,
-        "summary": f"Council selected: {', '.join(models)}",
+        "summary": (
+            f"Council selected: {', '.join(models)} — "
+            f"{len(ordered)} commits"
+        ),
     })
     await broadcast_audit(
         "council",
-        f"Council selected: {', '.join(models)}",
+        f"Council selected: {', '.join(models)} — ranking {len(ordered)} commits",
         progress=35,
         phase="ranking",
     )
     await broadcast_js(exec_event(Three[Selector("#emission-log")][PREPEND][
-        ["div.log-council", f"Council: {', '.join(models)} — {len(commits)} commits"]
+        ["div.log-council",
+            f"Council: {', '.join(models)} — {len(ordered)} commits"]
     ]))
 
-    authors = contributors
-    author_commits = {a: [] for a in authors}
-    for row in sorted(commits, key=lambda r: r["oid"]):
-        author_commits[row["contributor"]].append({
-            "message": row["message"],
-            "sha": row["oid"].split(":", 1)[1][:8],
-            "diff": row["patch"],
-            "commit_id": commit_id_for_oid(row["oid"]),
-        })
-
+    sides = [_commit_side_for_llm(row) for row in ordered]
     judgment_ids: list[str] = []
 
     async def compare_fn(i, j):
-        a1, a2 = authors[i], authors[j]
-        side_a = _author_side_for_llm(a1, author_commits)
-        side_b = _author_side_for_llm(a2, author_commits)
+        side_a, side_b = sides[i], sides[j]
+        label_a = f"{side_a['commit_id'][:16]} ({side_a['contributor']})"
+        label_b = f"{side_b['commit_id'][:16]} ({side_b['contributor']})"
         prompt = build_pairwise_prompt(side_a, side_b)
         comparison_material = {
             "ranking_run_id": ranking_run_id,
             "side_a": {
-                "contributor": a1,
-                "commit_ids": side_a["commit_ids"],
+                "contributor": side_a["contributor"],
+                "commit_id": side_a["commit_id"],
+                "commit_ids": [side_a["commit_id"]],
+                "oid": side_a["oid"],
                 "message": _bytes_blob(side_a["message"]),
                 "diff": _bytes_blob(side_a["diff"]),
             },
             "side_b": {
-                "contributor": a2,
-                "commit_ids": side_b["commit_ids"],
+                "contributor": side_b["contributor"],
+                "commit_id": side_b["commit_id"],
+                "commit_ids": [side_b["commit_id"]],
+                "oid": side_b["oid"],
                 "message": _bytes_blob(side_b["message"]),
                 "diff": _bytes_blob(side_b["diff"]),
             },
@@ -1650,22 +1669,24 @@ async def rank_commits(commits: list[dict], *, epoch: int = -1):
         comparison_material = {
             **comparison_material,
             "comparison_id": comparison_id,
-            "summary": f"Comparing {a1} with {a2}",
+            "summary": f"Comparing {label_a} with {label_b}",
         }
         cmp_ev = await append_evidence(epoch, "comparison.input", comparison_material)
         await broadcast_audit(
             "comparison",
-            f"Comparing {a1} with {a2}",
+            f"Comparing commits {label_a} vs {label_b}",
             phase="ranking",
             evidence_event_id=cmp_ev.event_id,
             evidence_url=_evidence_url("comparison", comparison_id),
             links={
                 "comparison": _evidence_url("comparison", comparison_id),
+                "commit_a": _evidence_url("commit", side_a["commit_id"]),
+                "commit_b": _evidence_url("commit", side_b["commit_id"]),
                 "epoch": _evidence_url("epoch", str(epoch)),
             },
         )
         await broadcast_js(exec_event(Three[Selector("#emission-status")][MORPH][
-            ["div#emission-status", f"Comparing {a1} vs {a2}…"]
+            ["div#emission-status", f"Comparing {label_a} vs {label_b}…"]
         ]))
         results = []
         for model in models:
@@ -1697,9 +1718,15 @@ async def rank_commits(commits: list[dict], *, epoch: int = -1):
                 jud_id = (existing or _find_judgment(comparison_id, model) or {}).get(
                     "judgment_id"
                 )
+                win_label = (
+                    f"{sides[w]['commit_id'][:16]} ({sides[w]['contributor']})"
+                )
+                lose_label = (
+                    f"{sides[l]['commit_id'][:16]} ({sides[l]['contributor']})"
+                )
                 await broadcast_audit(
                     "vote",
-                    f"{model}: {authors[w]} over {authors[l]} ({result['ratio']})",
+                    f"{model}: {win_label} over {lose_label} ({result['ratio']})",
                     phase="ranking",
                     evidence_url=(
                         _evidence_url("judgment", jud_id) if jud_id else None
@@ -1714,8 +1741,8 @@ async def rank_commits(commits: list[dict], *, epoch: int = -1):
                 await broadcast_js(exec_event(Three[Selector("#emission-log")][PREPEND][
                     ["div.log-vote",
                         ["span.model", model], " — ",
-                        ["span.winner", authors[w]], f" beat ",
-                        ["span.loser", authors[l]], f" ({result['ratio']}) ",
+                        ["span.winner", win_label], f" beat ",
+                        ["span.loser", lose_label], f" ({result['ratio']}) ",
                         ["span.explanation", result["explanation"]],
                     ]
                 ]))
@@ -1745,24 +1772,46 @@ async def rank_commits(commits: list[dict], *, epoch: int = -1):
             ["div#emission-status", label]
         ]))
 
-    pairs = await pairwise_rank(len(authors), compare_fn, progress_fn)
+    pairs = await pairwise_rank(len(ordered), compare_fn, progress_fn)
 
     if not pairs:
-        ranking = {authors[0]: Decimal("1")} if authors else {}
+        commit_score_list = [Decimal("1")]
     else:
         scores = rank_centrality(pairs)
-        ranking = {authors[i]: Decimal(str(scores[i])) for i in range(len(authors))}


… preview truncated; 12,453 characters omitted

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