sequence 932

delphi.consensus.snapshot

Appended 27 Aug 2026, 05:31 UTC. Its place in the chain is fixed by the hash of the entry before it; what follows is whether that place is covered by a signature.

← 931 933 →

The entry

entry_hash4fe84decdd66REAL_UTC

sequence_number: 932
entry_type: delphi.consensus.snapshot
entity_type: forecast_question
entity_id: 1b1a20a9-2af9-4c58-972e-a6628e241b09
logged_at: 2026-08-27T05:31:41.656350+00:00
previous_hash: e84f8d9079455c93fbfd4d00659a341ea4ca697b995d2c08654bb8d7ca9bb06c
payload_hash: 0642ad684180121dc5b3521cfa2719307b9c75e8ded2df51b91542655e080fc1
entry_hash: 4fe84decdd66ac734e5a4aaa4efece3a598fa42d78c7ba31c77716f0f8d9fa46

sourceGET /api/transparency/entries/{n}· one entry, as served to this reader· payload served

Payload

{
  "timebase": {
    "clock": "REAL_UTC"
  },
  "computed_at": "2026-08-27T05:31:41.653432Z",
  "populations": [
    "DELPHI_AGENT",
    "EXTERNAL_AGENT",
    "HUMAN",
    "NETWORK",
    "VERIFIED_EXPERT"
  ],
  "question_id": "1b1a20a9-2af9-4c58-972e-a6628e241b09",
  "series_commitment": "a9ce1e1e0ef581a89293cd9f310f2ed69f09a3d3c84a29b4989ac799ea10a33f",
  "commitment_version": "v2"
}

Shown indented so it can be read. The hash is taken over the canonical form of the same object — keys sorted by code point, no insignificant whitespace, UTF-8 rather than escaped ASCII, timestamps RFC 3339 in UTC to microseconds, decimals as their plain string form. The check below re-encodes the object canonically before hashing it, which is why an indented display cannot make it pass or fail.

Which digest recipe applies

migration 0021 salted this digest · both versions coexist in one append-only log

commitment_versionv2stated in the payload

The entry names its own version, so a reader can pick the right recipe without knowing when the salt was introduced.

sha256(canonical_json({question_id, computed_at, salt, readings})), where readings is the batch's populations sorted by population, each carrying exactly {population, method, method_version, sample_size, distinct_operator_count, value}

salt: fb0d2f39b1810f2037b94c0f27af29b7eb03a7c022b1ce8718da549ba6a42487
readings: 5
recompute: sha256(canonical_json({question_id, computed_at, salt, readings})) must equal series_commitment in the payload above. Take question_id and computed_at from that payload verbatim, sort readings by population, and give each reading exactly the six keys served here — the values carry their stored precision and are hashed as the decimal strings they appear as

Verify it here

computed in your browser, not on the server

Recomputing the hashes in this browser… If this sentence stays, this browser has no Web Crypto and nothing here has been verified locally.

The proof, as served

leaf_index: 932
tree_size: 2239
leaf_hash: ebfd2c5729eb9816ac5cc1a42d66bad2dbbd48e43023ec996fa9147eac5197a3
audit_path (12): 0: 61bb29dcb5f68cfffd62197d28fb2b76654d3525a4dfceb64fdaeb70caeb8c6f1: f2c0b7568cc445e8dd8ddd74d5d91e7603696d6a8cb44499d688444e80b8147d2: e38498926ee906eacbad475ae78c421a5e1ae5285f6f1baa2f444537b1a323423: 509cf4811e748dc46ba1a53f678867b9772ce5e96414d7d13d85e057ef28d2b24: 4aeda3d843ef10be90d9659f518efeb4352e4f255b4919d31b8fe58f748367475: a4ff2459afb57ec6e04ab81c0944b7e45e77c02fa08b12d05f7c22eaad48ced76: 0b2df4116ce96d4c1fa68d027745d1dc76550ebc49d5cb7aa6fcb4e26ccf8f8d7: 9f20cfd56c132d1d00fe76cb2e482a3a9b4fbe96bc0d292d29ba8016ce161e9d8: 184a24c3b623669a5fc418f1a01a448ab12c5b650e771370beaf16f761dd2e6c9: e5a5c76fa4bfc3f31f74c026263990b303ea76d2ec828987b307239036c908ac10: 86666e2cb262024eb1c2584c671184dc2fb8b8d41a345bde94ca518e487ac23911: 9203a1600de814d3afb819f841569332c7e3b58c4d0e0ea56c377729f25dca49
root_hash: 03dd6fb33b4bd65222257eec0069956926795f14f7354795bcb42af5fe51ba08

The earliest published head that covers this entry

tree_size: 953
signed at: 27 Aug 2026, 05:31 UTC
key_id: 042b55492fabadcb8ffb9fe4e9b6a3e8
root_hash: 777b84e80ce59d38be10789755416a4f30978c344b4fac71e55a1730db98b7a2
signature: RuM+HDdwLwkwChNgs5UCcJZC9MkAJ3Wm0H42BkAdbOcleJjXbre134gogmmC+Veo5jcMHalx4/2FVClJdH0ADg==

sourceGET /api/transparency/proof/inclusion· leaf_hash, audit_path, root_hash· audit-path nodes: 12