胡贰弦
type: MusicGroup
popularity: 2
followers: 2
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x41aa85a741e2dcc084187ccf6bd96a2ec40682c5137de9e2933387db2ffcdfbc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954131
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954131
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7bf6106b-dd9b-40de-9945-8402e636ae37.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7bf6106b-dd9b-40de-9945-8402e636ae37.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7bf6106b-dd9b-40de-9945-8402e636ae37
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T19:19:19Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x41aa85a741e2dcc084187ccf6bd96a2ec40682c5137de9e2933387db2ffcdfbc","name":"胡贰弦","registered_at":"2026-06-17T08:53:34Z","symbol":"NIM1344329","token_address":"0xe7acad4a76a7ed90b5c483689bf88482526d575b","type":"artist","uuid":"7bf6106b-dd9b-40de-9945-8402e636ae37"}
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 0x41aa85a741e2dcc084187ccf6bd96a2ec40682c5137de9e2933387db2ffcdfbc. Chain 2 (Bitcoin): anchored in block 954131 (2026-06-17T19:19:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7bf6106b-dd9b-40de-9945-8402e636ae37.json and https://artists.proofprofile.net/proofs/artist/7bf6106b-dd9b-40de-9945-8402e636ae37.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T19:19:19Z
  text: {"copyright_id":"0x41aa85a741e2dcc084187ccf6bd96a2ec40682c5137de9e2933387db2ffcdfbc","name":"胡贰弦","registered_at":"2026-06-17T08:53:34Z","symbol":"NIM1344329","token_address":"0xe7acad4a76a7ed90b5c483689bf88482526d575b","type":"artist","uuid":"7bf6106b-dd9b-40de-9945-8402e636ae37"}
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  type: MusicAlbum
  date published: 2024-03-16
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  type: MusicAlbum
  date published: 2025-02-09
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  type: MusicAlbum
  date published: 2025-02-09
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  type: MusicAlbum
  date published: 2025-02-09
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  type: MusicAlbum
  date published: 2025-02-22