sequence 2,101

delphi.consensus.snapshot

Appended 24 Sept 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.

← 2100 2102 →

The entry

entry_hashf650ad32dc6fREAL_UTC

sequence_number: 2101
entry_type: delphi.consensus.snapshot
entity_type: forecast_question
entity_id: 4bfc7aa0-f12f-479c-ba06-d8e4cebfe625
logged_at: 2026-09-24T05:31:21.468000+00:00
previous_hash: 9f1b176099c8efcdacdfe07a3b481cae6e842943661e9768471760539234b160
payload_hash: 19fd13bb0e714bf32c1d0bf4b2fe347f7934f577eff7fb26b93626dcaa21dd85
entry_hash: f650ad32dc6f587c10ad14a0b94159e8f3b356207740e1d372eedcb969f2bd16

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

Payload

{
  "timebase": {
    "clock": "REAL_UTC"
  },
  "computed_at": "2026-09-24T05:31:21.463799Z",
  "populations": [
    "DELPHI_AGENT",
    "EXTERNAL_AGENT",
    "HUMAN",
    "NETWORK",
    "VERIFIED_EXPERT"
  ],
  "question_id": "4bfc7aa0-f12f-479c-ba06-d8e4cebfe625",
  "series_commitment": "a266dcff4fe42c8e8c9fa1405943d426dcaa0e546187b011e26aba9ff20d2d09",
  "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: 0f5551dd242f07f7a011b03ac10556d5e2edc7a0bfff9fd2ca7b361cbb501029
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: 2101
tree_size: 2551
leaf_hash: ebaa4e1bd4af22e04c254fa3a0ecb1274fdd245b98f468f180f438a0a7e5b65a
audit_path (10): 0: 71ebe278c730e795a0353cc3619f0a5647ee58227f06ecdabef20b45cddf1cfe1: 4c418245f292f596281ba5814d6e7069867b8af7ed93d6119edc35049d7972ed2: b15600f2557cb0e35455f34add32f669ec308824a408c30a22fca94427830fdb3: c8c67b194d77a900b07fea27ce0fa8a7320de5ac55608eb16fe714e19dd2f0f24: b50be66eb4e6d6522ae5a50862f42e8f6a5663bd96a07ce297353a7a9eac28d85: 3409250b2a7726d8587c9c1abf72ab8a5f5c9da864649b1684c0d122c06aa26c6: 97e580b0f254128201e36dc81f73bca17443fd5e21d28fd611b3832d3123cce37: 32d97e61743fccf6d32da7a407cb944cdd5c52aa0de4e874e2c78dadf7892a908: 14b41448aee03dd4df0eb21cde63a03237555b07fa9d70375f318ccf3f8537999: c2a61f9c340fe90eca96b6ee3ce7a915f3c652848ec632eaa3e641ee4f30439d
root_hash: db221e002ae7125dc7fe74a2d447ce33e565eb601a3e51d1b84b0a75cce9df05

The earliest published head that covers this entry

tree_size: 2109
signed at: 24 Sept 2026, 05:31 UTC
key_id: 042b55492fabadcb8ffb9fe4e9b6a3e8
root_hash: a31f6b62ecd0a5a7c1047a6a100107a943b510cb76232ce57ee7beb14ed29366
signature: XPXY8TNF05VBXoAX7JDAXHp2GQM3ww78P37YW9pWBrGYGusEDyuG6M7S/0ia9+KBJ+KmQC26izeb9cFfRf3XBw==

sourceGET /api/transparency/proof/inclusion· leaf_hash, audit_path, root_hash· audit-path nodes: 10