川澄綾子
type: MusicGroup
popularity: 9
followers: 260
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe03782e1e2d24ec30493c046d5c2fc02fbb6ade208b3ade303d1429582475fc2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954549
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954549
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a8c2c3a4-8e32-48ae-b18e-42a091f98a61.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a8c2c3a4-8e32-48ae-b18e-42a091f98a61.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a8c2c3a4-8e32-48ae-b18e-42a091f98a61
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T10:56:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe03782e1e2d24ec30493c046d5c2fc02fbb6ade208b3ade303d1429582475fc2","name":"川澄綾子","registered_at":"2026-06-20T08:44:42Z","symbol":"NIM1568865","token_address":"0xfab32a9b9027b86ac4e4f86f1719cca2945edee9","type":"artist","uuid":"a8c2c3a4-8e32-48ae-b18e-42a091f98a61"}
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 0xe03782e1e2d24ec30493c046d5c2fc02fbb6ade208b3ade303d1429582475fc2. Chain 2 (Bitcoin): anchored in block 954555 (2026-06-20T12:10:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a8c2c3a4-8e32-48ae-b18e-42a091f98a61.json and https://artists.proofprofile.net/proofs/artist/a8c2c3a4-8e32-48ae-b18e-42a091f98a61.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T12:10:20Z
  text: {"copyright_id":"0xe03782e1e2d24ec30493c046d5c2fc02fbb6ade208b3ade303d1429582475fc2","name":"川澄綾子","registered_at":"2026-06-20T08:44:42Z","symbol":"NIM1568865","token_address":"0xfab32a9b9027b86ac4e4f86f1719cca2945edee9","type":"artist","uuid":"a8c2c3a4-8e32-48ae-b18e-42a091f98a61"}
album: まほろまてぃっく～もっと美しいもの～音楽編
  type: MusicAlbum
  date published: 2002-12-06
album: AA
  type: MusicAlbum
  date published: 2004-10-08