沈之乐
type: MusicGroup
popularity: 2
followers: 9
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcd4a3e0d26e8fe3bce232dbb4852f149bf3b59ef6944313f68d43fc7648f88c6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953959
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953959
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/26c16d5e-63f3-4bbd-b5c2-a65115f7c3c7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/26c16d5e-63f3-4bbd-b5c2-a65115f7c3c7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/26c16d5e-63f3-4bbd-b5c2-a65115f7c3c7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T14:51:55Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcd4a3e0d26e8fe3bce232dbb4852f149bf3b59ef6944313f68d43fc7648f88c6","name":"沈之乐","registered_at":"2026-06-16T03:20:43Z","symbol":"NIM0921303","token_address":"0xa3dadb1fc0c63270dc2cf753ba95a1caa1a99bf8","type":"artist","uuid":"26c16d5e-63f3-4bbd-b5c2-a65115f7c3c7"}
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 0xcd4a3e0d26e8fe3bce232dbb4852f149bf3b59ef6944313f68d43fc7648f88c6. Chain 2 (Bitcoin): anchored in block 953959 (2026-06-16T14:51:55Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/26c16d5e-63f3-4bbd-b5c2-a65115f7c3c7.json and https://artists.proofprofile.net/proofs/artist/26c16d5e-63f3-4bbd-b5c2-a65115f7c3c7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T14:51:55Z
  text: {"copyright_id":"0xcd4a3e0d26e8fe3bce232dbb4852f149bf3b59ef6944313f68d43fc7648f88c6","name":"沈之乐","registered_at":"2026-06-16T03:20:43Z","symbol":"NIM0921303","token_address":"0xa3dadb1fc0c63270dc2cf753ba95a1caa1a99bf8","type":"artist","uuid":"26c16d5e-63f3-4bbd-b5c2-a65115f7c3c7"}
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  type: MusicAlbum
  date published: 2023-08-17
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  type: MusicAlbum
  date published: 2023-09-11
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  type: MusicAlbum
  date published: 2023-09-14
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  type: MusicAlbum
  date published: 2023-09-19
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  type: MusicAlbum
  date published: 2023-10-13
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  type: MusicAlbum
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  type: MusicAlbum
  date published: 2024-05-31