回首
type: MusicGroup
genre: gufeng
popularity: 11
followers: 4
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x12747e3449cab64a0d98419571fcb45a21aac31c5a62c2a99f968c5fdcd8888f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953750
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953750
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a99a4e24-a245-4524-9f9c-d4d92fe78d23.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a99a4e24-a245-4524-9f9c-d4d92fe78d23.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a99a4e24-a245-4524-9f9c-d4d92fe78d23
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T06:12:23Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x12747e3449cab64a0d98419571fcb45a21aac31c5a62c2a99f968c5fdcd8888f","name":"回首","registered_at":"2026-06-14T22:24:37Z","symbol":"NIM0595209","token_address":"0x9e1449124066636ec1749c79b3dd8c23bc62e33d","type":"artist","uuid":"a99a4e24-a245-4524-9f9c-d4d92fe78d23"}
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 0x12747e3449cab64a0d98419571fcb45a21aac31c5a62c2a99f968c5fdcd8888f. Chain 2 (Bitcoin): anchored in block 953750 (2026-06-15T06:12:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a99a4e24-a245-4524-9f9c-d4d92fe78d23.json and https://artists.proofprofile.net/proofs/artist/a99a4e24-a245-4524-9f9c-d4d92fe78d23.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T06:12:23Z
  text: {"copyright_id":"0x12747e3449cab64a0d98419571fcb45a21aac31c5a62c2a99f968c5fdcd8888f","name":"回首","registered_at":"2026-06-14T22:24:37Z","symbol":"NIM0595209","token_address":"0x9e1449124066636ec1749c79b3dd8c23bc62e33d","type":"artist","uuid":"a99a4e24-a245-4524-9f9c-d4d92fe78d23"}
album: 九万字 (DJ九零版)
  type: MusicAlbum
  date published: 2025-02-12