宮﨑歩
type: MusicGroup
popularity: 4
followers: 322
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa6561bcbe530abd8f3ce2a83b27bbfa644a93239bfa950212c909e406c511417
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953899
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953899
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0ff3f570-b2ef-41cd-9d0b-2d7f605563e6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0ff3f570-b2ef-41cd-9d0b-2d7f605563e6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0ff3f570-b2ef-41cd-9d0b-2d7f605563e6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T06:37:25Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa6561bcbe530abd8f3ce2a83b27bbfa644a93239bfa950212c909e406c511417","name":"宮﨑歩","registered_at":"2026-06-15T19:09:17Z","symbol":"NIM0804022","token_address":"0x78dbe8441b7b2c3af1072e4017b0b00450edd8f1","type":"artist","uuid":"0ff3f570-b2ef-41cd-9d0b-2d7f605563e6"}
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 0xa6561bcbe530abd8f3ce2a83b27bbfa644a93239bfa950212c909e406c511417. Chain 2 (Bitcoin): anchored in block 953899 (2026-06-16T06:37:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0ff3f570-b2ef-41cd-9d0b-2d7f605563e6.json and https://artists.proofprofile.net/proofs/artist/0ff3f570-b2ef-41cd-9d0b-2d7f605563e6.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T06:37:25Z
  text: {"copyright_id":"0xa6561bcbe530abd8f3ce2a83b27bbfa644a93239bfa950212c909e406c511417","name":"宮﨑歩","registered_at":"2026-06-15T19:09:17Z","symbol":"NIM0804022","token_address":"0x78dbe8441b7b2c3af1072e4017b0b00450edd8f1","type":"artist","uuid":"0ff3f570-b2ef-41cd-9d0b-2d7f605563e6"}
album: 零～始まりの場所～
  type: MusicAlbum
  date published: 2021-12-01