Sarah Martin
type: MusicGroup
popularity: 2
followers: 472
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xee6422884f923894eb1eac459ddd9cbcd181517d24f0d1fee73e49bb26c8d7bd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953871
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953871
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/064832dc-2851-4865-b35b-227b06ae15ce.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/064832dc-2851-4865-b35b-227b06ae15ce.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/064832dc-2851-4865-b35b-227b06ae15ce
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T01:46:03Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xee6422884f923894eb1eac459ddd9cbcd181517d24f0d1fee73e49bb26c8d7bd","name":"Sarah Martin","registered_at":"2026-06-15T15:56:20Z","symbol":"NIM0757980","token_address":"0x4846b0906c89ca90c30748474525fcad76eaea2b","type":"artist","uuid":"064832dc-2851-4865-b35b-227b06ae15ce"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee6422884f923894eb1eac459ddd9cbcd181517d24f0d1fee73e49bb26c8d7bd. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/064832dc-2851-4865-b35b-227b06ae15ce.json and https://artists.proofprofile.net/proofs/artist/064832dc-2851-4865-b35b-227b06ae15ce.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
  text: {"copyright_id":"0xee6422884f923894eb1eac459ddd9cbcd181517d24f0d1fee73e49bb26c8d7bd","name":"Sarah Martin","registered_at":"2026-06-15T15:56:20Z","symbol":"NIM0757980","token_address":"0x4846b0906c89ca90c30748474525fcad76eaea2b","type":"artist","uuid":"064832dc-2851-4865-b35b-227b06ae15ce"}
album: All Acoustic
  type: MusicAlbum
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  type: MusicAlbum
  date published: 2018-10-05
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  type: MusicAlbum
  date published: 2018-11-09
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
  date published: 2025-06-09