上村かおり
type: MusicGroup
popularity: 4
followers: 71
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x44611852e6e306cd4476a88fe39db839aee1f159c8cc5f308623056085b10e22
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/80b363a7-cf12-4986-90d7-b599f6fd3739.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/80b363a7-cf12-4986-90d7-b599f6fd3739.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/80b363a7-cf12-4986-90d7-b599f6fd3739
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x44611852e6e306cd4476a88fe39db839aee1f159c8cc5f308623056085b10e22","name":"上村かおり","registered_at":"2026-06-17T10:22:02Z","symbol":"NIM1365439","token_address":"0xa890da613be4422830490d522d8d4e2039a03aba","type":"artist","uuid":"80b363a7-cf12-4986-90d7-b599f6fd3739"}
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 0x44611852e6e306cd4476a88fe39db839aee1f159c8cc5f308623056085b10e22. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/80b363a7-cf12-4986-90d7-b599f6fd3739.json and https://artists.proofprofile.net/proofs/artist/80b363a7-cf12-4986-90d7-b599f6fd3739.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x44611852e6e306cd4476a88fe39db839aee1f159c8cc5f308623056085b10e22","name":"上村かおり","registered_at":"2026-06-17T10:22:02Z","symbol":"NIM1365439","token_address":"0xa890da613be4422830490d522d8d4e2039a03aba","type":"artist","uuid":"80b363a7-cf12-4986-90d7-b599f6fd3739"}
album: Marry Me
  type: MusicAlbum
  date published: 1995-04-21
album: さよならが言えなくて
  type: MusicAlbum
  date published: 1996-06-21
album: 幸せの耳打ち
  type: MusicAlbum
  date published: 1996-08-21