sequence 1,057

delphi.consensus.snapshot

Appended 29 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.

← 1056 1058 →

The entry

entry_hash124b8c82021bREAL_UTC

sequence_number: 1057
entry_type: delphi.consensus.snapshot
entity_type: forecast_question
entity_id: 24c5a768-70af-4997-afe5-05e9edc2e4a7
logged_at: 2026-08-29T05:31:00.342433+00:00
previous_hash: 03d47b873cfb6b2c7621c053ce82bb9af209bb0c4e46d7af7390b721f8420240
payload_hash: bf087041eb4729b5ab16c1df56e012f6c3be0b7eed0e61604f9d2feda3854bb7
entry_hash: 124b8c82021bec5735cfd203554d94eb835eff4e8f7fe22eaa68118d828fd7f8

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

Payload

{
  "timebase": {
    "clock": "REAL_UTC"
  },
  "computed_at": "2026-08-29T05:31:00.337628Z",
  "populations": [
    "DELPHI_AGENT",
    "EXTERNAL_AGENT",
    "HUMAN",
    "NETWORK",
    "VERIFIED_EXPERT"
  ],
  "question_id": "24c5a768-70af-4997-afe5-05e9edc2e4a7",
  "series_commitment": "6a74f3524ad8e2dda9526a9af2ec75c8d693d01e23ddfe462af97c1e9f665855",
  "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: b49f3c32d4dca2ab28d7c3643243db61009d6950f75192a8ecfe5731c66d7cca
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: 1057
tree_size: 2357
leaf_hash: fe02ef7aae79f5cc43e369e50ed1fc5aad2cb75ddcfa7dda8e54d1f6011a9abe
audit_path (12): 0: 145ad79cdcd83b6ba6d87f1cd399d94d8224847b0a3527e347e2101d1e59eff11: 89a9934eed4fa75c7f2e40ef21cd2e142756c34592abc84da70aea676b03bc742: d7fdab3fa0e0b4b08a4aba3a1aaf12d4a5562aaa9c18bdb5fe5ee6e7a93543c43: cefd9d03f3c76d3d7de3e65a8238184df1c4f1757ab1a369726dbec6f31f084e4: d0267cbc326f3cc9e4ff338f21eb34ace34989c2f89b76c958e5491bfb9fa3ca5: de01980cc2d9fbeb76026da9c048d75551c73417ef383a31739b0bbf4a69e81d6: d82a2e270b0289b874ebb92edc37695f28bdf9f53266c9bda129fd6b58431b787: bbfee2f96690132143d2a2a16089df72535201b31174873b1f1a4d4c85a029a98: 6ce18fb0b650e54a2c9454c3e9abde48f8386826f5bd1752662ede2993ff557e9: e4979eb1a845b9e87ed1dae5e71668989143fa3d9cf0261e0f77022718d3602e10: 9cc5fac487aa9ec1c73baef673025a398e2ca2721a82dbc4c270eb2473aaf7be11: 2f361a0c4a49843181536f3a7baa572ba4bc0573be4bb8272112c3d056aa1031
root_hash: 58c8c5ab99dba36e8c6b398578e37592253a716c9cf756f72e78b6606a198d59

The earliest published head that covers this entry

tree_size: 1073
signed at: 29 Aug 2026, 05:31 UTC
key_id: 042b55492fabadcb8ffb9fe4e9b6a3e8
root_hash: 5dba160bb906a884e1f1fb90970356c08cd125402790a82dec37eed1ce1dbf60
signature: pp/gqpXj883uC3rBTWjoYIk190+lqVqjxj7iskZY/ZhrKiUo7PHanG0AwhJgLmVKUeHax3qxw2kQjeT8SweHCw==

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