Thomas Brantigan
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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
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-16T16:01:49Z
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track: 33 Portraits, Op. 101: Praise the Lord with Drums and Cymbals (Arr. T. Brantigan)

33 Portraits, Op. 101: Praise the Lord with Drums and Cymbals (Arr. T. Brantigan)
type: MusicRecording
duration: PT3M27S
duration ms: 207600
explicit: false
by artist: Sigfrid Karg-Elert
by artist: Thomas Brantigan
by artist: Paul Riedo
by artist: Dallas Wind Symphony
by artist: Frederick Fennell
in album: Pomp & Pipes
  type: MusicAlbum
  date published: 2012-03-01
genre: gregorian-chant
isrc code: USFKZ0610280
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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
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a34b2a1796268cd8d01e6dcabb8940423ea5d5be4cd4266dbf159f531ec46f9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USFKZ0610280.
  date published: 2026-07-02T03:55:08Z
audio: 33 Portraits, Op. 101: Praise the Lord with Drums and Cymbals (Arr. T. Brantigan)
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  additional property: Key Name
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