The Jamestown Brothers
type: MusicGroup
genre: folk rock
genre: sea shanties
popularity: 3
followers: 185
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x42ce36efe97ad4c86eabc640a8f58d8f79404802cf8154627edb6b51239e34ac
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954516
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954516
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a21b1e2c-9506-48ac-a953-f04b51c339e3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a21b1e2c-9506-48ac-a953-f04b51c339e3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a21b1e2c-9506-48ac-a953-f04b51c339e3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T07:04:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x42ce36efe97ad4c86eabc640a8f58d8f79404802cf8154627edb6b51239e34ac","name":"The Jamestown Brothers","registered_at":"2026-06-20T06:05:08Z","symbol":"NIM1535306","token_address":"0x267babf4341665cd3c9602dfe44c8d876da0dab5","type":"artist","uuid":"a21b1e2c-9506-48ac-a953-f04b51c339e3"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42ce36efe97ad4c86eabc640a8f58d8f79404802cf8154627edb6b51239e34ac. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a21b1e2c-9506-48ac-a953-f04b51c339e3.json and https://artists.proofprofile.net/proofs/artist/a21b1e2c-9506-48ac-a953-f04b51c339e3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T07:04:44Z
  text: {"copyright_id":"0x42ce36efe97ad4c86eabc640a8f58d8f79404802cf8154627edb6b51239e34ac","name":"The Jamestown Brothers","registered_at":"2026-06-20T06:05:08Z","symbol":"NIM1535306","token_address":"0x267babf4341665cd3c9602dfe44c8d876da0dab5","type":"artist","uuid":"a21b1e2c-9506-48ac-a953-f04b51c339e3"}
album: Singing for Our Supper
  type: MusicAlbum
  date published: 2019-03-06
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album: Rebels Rogues and Regrets
  type: MusicAlbum
  date published: 2020-08-31
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  type: MusicAlbum
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  type: MusicAlbum
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