John Bunyan
type: MusicGroup
description: John Bunyan (; 1628 – 31 August 1688) was an English writer and nonconformist preacher. He is best remembered as the author of the Christian allegory The Pilgrim's Progress, which also became an influ
popularity: 18
followers: 650
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  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-14T16:26:51Z
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album: O peregrino
  type: MusicAlbum
  date published: 2008-06-09
album: Die Pilgerreise
  type: MusicAlbum
  date published: 2014-01-07
album: The Holy War (Unabridged)
  type: MusicAlbum
  date published: 2020-08-12
track: He Who Would Valiant Be
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  by artist: John Bunyan
  by artist: Percy Dearmer
  by artist: Ralph Vaughan Williams
  by artist: Choir of Jesus College, Cambridge
  by artist: Richard Pinel
  in album: Praise My Soul: Favourite Hymns from Jesus College Cambridge
    type: MusicAlbum
    date published: 2018-10-26
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
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    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x025d0341981e51e9ce7d13fcf05f58c58557015d876fd283addaecbaba65cfbb. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLLH1854512.
    date published: 2026-07-30T03:35:13Z
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