sequence 1,433

delphi.consensus.snapshot

Appended 5 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.

← 1432 1434 →

The entry

entry_hash2941b009e4f4REAL_UTC

sequence_number: 1433
entry_type: delphi.consensus.snapshot
entity_type: forecast_question
entity_id: 3b1bf8d0-fa87-4392-b4cf-333e6cba3622
logged_at: 2026-09-05T05:30:42.112926+00:00
previous_hash: e322bfb8fe1a82db198c4f592a025fa2aeeed8ee27644ee8b030bacbd6d31a67
payload_hash: f3cd80d6fd31dddb8e100643fb909a3addc33243ac52128143a6df1dae86cdd0
entry_hash: 2941b009e4f46688989b0990e641301b4ce583b76b2ec20a5e01c78ae8ba4edd

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

Payload

{
  "timebase": {
    "clock": "REAL_UTC"
  },
  "computed_at": "2026-09-05T05:30:42.110747Z",
  "populations": [
    "DELPHI_AGENT",
    "EXTERNAL_AGENT",
    "HUMAN",
    "NETWORK",
    "VERIFIED_EXPERT"
  ],
  "question_id": "3b1bf8d0-fa87-4392-b4cf-333e6cba3622",
  "series_commitment": "48fb1fdd45c4ea785d74d34fec6e1218cf832b4f1751b744cb6581828e815951",
  "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: 4accfa17e9aaa049385b1a7fac2001611e061eedc172487bb9ce48b8b096d4ca
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: 1433
tree_size: 2491
leaf_hash: f8e538c5a0d45c34d0a580573fb48c8df03a9b2140ced2829b5bc2e765d8062f
audit_path (12): 0: f451c2fc6714178f3292c83980091ae422b0cd89e5913ef50a43df7bcfe30ccf1: eb6763bf522e902fedd1072bc126483ba482ccf05335ba1dea8c5e5e6e2708542: 683ba7eae3107d98372bb1d7dc3486104b7f7b049cacb16c6ff57c15169928103: 564edf0d636b2ed19b71651eecb09aae7f9bedda413c151d2bf06ab39ce788c34: eb2ad53469a5278129837bf3faf26af1991b9ed24b7535827c85adb2a6fdf4295: 2d7f0151c1724ba0ea8bf06d726643f0f6893ec7bb868e6681848be8fd368c056: ef252f031089471cd75411471a0532012f4deaced96acde8a10c0024e7faaa357: 59548e903d1441fb0d6e6d441d39382bb2fbf2f915e94e4c49c6bda187d8c1278: 73b80563a47162cfa99809097caf5d77512af3a28ebfbf76c6bcfd5f572cc1d29: e4979eb1a845b9e87ed1dae5e71668989143fa3d9cf0261e0f77022718d3602e10: 9cc5fac487aa9ec1c73baef673025a398e2ca2721a82dbc4c270eb2473aaf7be11: 083d0806ed3c3d656f2d8c4762013d3fb4c0ed984cb03e95e8ae46936f2431df
root_hash: a9a1dac66ff7c8ec3d4b27b434ff70fbde5df3ef3dcd4b4fe4b41bb80f78a7c7

The earliest published head that covers this entry

tree_size: 1445
signed at: 5 Sept 2026, 05:30 UTC
key_id: 042b55492fabadcb8ffb9fe4e9b6a3e8
root_hash: 14935c0bde678e80dc3a37641650904de8988691c769149c38b10d54518ed6da
signature: oBabtEvQC4ypaFdP+K4eO6SkxwE6AoHWZOprH3l6t63fcsSRixVw214MPbkS6PXBnFsTXA0rFPKABtwhipFLCA==

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