藍美代子
type: MusicGroup
genre: enka
genre: kayokyoku
popularity: 9
followers: 309
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8f44e3ce099273bb241f2aa740884717e37c042223bd7b29410d35ff120d9506
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953968
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953968
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/29aadfc5-a01c-43dc-b577-a92adc393112.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/29aadfc5-a01c-43dc-b577-a92adc393112.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/29aadfc5-a01c-43dc-b577-a92adc393112
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T16:01:49Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8f44e3ce099273bb241f2aa740884717e37c042223bd7b29410d35ff120d9506","name":"藍美代子","registered_at":"2026-06-16T03:59:10Z","symbol":"NIM0930489","token_address":"0xb2d8ef1f6f20d8f14da0032744e42f9274e4737d","type":"artist","uuid":"29aadfc5-a01c-43dc-b577-a92adc393112"}
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 0x8f44e3ce099273bb241f2aa740884717e37c042223bd7b29410d35ff120d9506. Chain 2 (Bitcoin): anchored in block 953968 (2026-06-16T16:01:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/29aadfc5-a01c-43dc-b577-a92adc393112.json and https://artists.proofprofile.net/proofs/artist/29aadfc5-a01c-43dc-b577-a92adc393112.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T16:01:49Z
  text: {"copyright_id":"0x8f44e3ce099273bb241f2aa740884717e37c042223bd7b29410d35ff120d9506","name":"藍美代子","registered_at":"2026-06-16T03:59:10Z","symbol":"NIM0930489","token_address":"0xb2d8ef1f6f20d8f14da0032744e42f9274e4737d","type":"artist","uuid":"29aadfc5-a01c-43dc-b577-a92adc393112"}
album: わたしの四季
  type: MusicAlbum
  date published: 1997-07-25