天馬 七星(CV:井上麻里奈)
type: MusicGroup
genre: orchestra
popularity: 2
followers: 147
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x50cbfdface91e22354f48e7cae855b3802f9b78ed63adc8ecb06fbe7442bafe8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954705
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954705
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ed670419-a1b2-443f-b687-2a5b15f1a641.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ed670419-a1b2-443f-b687-2a5b15f1a641.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ed670419-a1b2-443f-b687-2a5b15f1a641
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T13:42:37Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x50cbfdface91e22354f48e7cae855b3802f9b78ed63adc8ecb06fbe7442bafe8","name":"天馬 七星(CV:井上麻里奈)","registered_at":"2026-06-21T11:20:23Z","symbol":"NIM1909331","token_address":"0xdffc07bf031523d08da458876d1850a940edbd33","type":"artist","uuid":"ed670419-a1b2-443f-b687-2a5b15f1a641"}
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 0x50cbfdface91e22354f48e7cae855b3802f9b78ed63adc8ecb06fbe7442bafe8. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ed670419-a1b2-443f-b687-2a5b15f1a641.json and https://artists.proofprofile.net/proofs/artist/ed670419-a1b2-443f-b687-2a5b15f1a641.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T13:42:37Z
  text: {"copyright_id":"0x50cbfdface91e22354f48e7cae855b3802f9b78ed63adc8ecb06fbe7442bafe8","name":"天馬 七星(CV:井上麻里奈)","registered_at":"2026-06-21T11:20:23Z","symbol":"NIM1909331","token_address":"0xdffc07bf031523d08da458876d1850a940edbd33","type":"artist","uuid":"ed670419-a1b2-443f-b687-2a5b15f1a641"}