sequence 1,469

delphi.consensus.snapshot

Appended 6 Sept 2026, 05:30 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.

← 1468 1470 →

The entry

entry_hash63099ed24d90REAL_UTC

sequence_number: 1469
entry_type: delphi.consensus.snapshot
entity_type: forecast_question
entity_id: 54324c2e-b8fd-4bfd-afc4-1b6e799c095d
logged_at: 2026-09-06T05:30:21.300598+00:00
previous_hash: fc402d7ec0a0cd479c5c31321ad70837cdde292751bffede0edac4f9bea0cce9
payload_hash: 396ce4a57d8f4b588c3be8018955c9c7d5d7f0ead22fa105584ec478d87cba86
entry_hash: 63099ed24d904baba1365ca002611e503dcf66c6c8de13222a5a49b3938fbd4d

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

Payload

{
  "timebase": {
    "clock": "REAL_UTC"
  },
  "computed_at": "2026-09-06T05:30:21.293399Z",
  "populations": [
    "DELPHI_AGENT",
    "EXTERNAL_AGENT",
    "HUMAN",
    "NETWORK",
    "VERIFIED_EXPERT"
  ],
  "question_id": "54324c2e-b8fd-4bfd-afc4-1b6e799c095d",
  "series_commitment": "1ce9e1bbe283aeabe0f09b8c363879d8babaa334e15a51b93a1c12af7c6e2a87",
  "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: 4c3ef3b2b162feb573b5ae2fc91dd389ea93a035151b43fc84250fcebff9bdb8
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: 1469
tree_size: 2239
leaf_hash: 73a4bdc4fa2684c32596808327a7df62f5846bee81780cb22a3c7ee93ea8441d
audit_path (12): 0: 8e5a114e4f2180ba67f26460b5f5f7210e6ad429b27e157603eca698d3a4d3561: 5420d0ae6523c1e8f8399ac7234bc6636992c6050cfaa626229d7d59045265982: 648901d7292c4497bb9ffa6ee330501e0ab717c4ae397b4f0c1879e64229b1963: 42878820b43512c1c2a2581b37f5793117180ef94b0b6fb782bc174177b1b3124: 9e3b1fad5bed14df89530da1d2006a48cab26220fb47a6eebf75bca76dedd3df5: 739ca866d241c50f0e2e976ae4aa9642352c635f5cd45baa14657876e95d20b26: ef252f031089471cd75411471a0532012f4deaced96acde8a10c0024e7faaa357: 59548e903d1441fb0d6e6d441d39382bb2fbf2f915e94e4c49c6bda187d8c1278: 73b80563a47162cfa99809097caf5d77512af3a28ebfbf76c6bcfd5f572cc1d29: e4979eb1a845b9e87ed1dae5e71668989143fa3d9cf0261e0f77022718d3602e10: 9cc5fac487aa9ec1c73baef673025a398e2ca2721a82dbc4c270eb2473aaf7be11: 9203a1600de814d3afb819f841569332c7e3b58c4d0e0ea56c377729f25dca49
root_hash: 03dd6fb33b4bd65222257eec0069956926795f14f7354795bcb42af5fe51ba08

The earliest published head that covers this entry

tree_size: 1493
signed at: 6 Sept 2026, 05:30 UTC
key_id: 042b55492fabadcb8ffb9fe4e9b6a3e8
root_hash: 1fa4feff08bf18e521e5bb925c6c5fdbb5017b8c298b1beb9ba8937af38f607e
signature: aqpHHBZ3TglMYwcvhOlfahpQD8AtFI2Le5O0NnqlhVLEXF/fDrgc8TON7pwPSD6UixQPbRrEyUkW8rogVxpzCQ==

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