剣 桃太郎
type: MusicGroup
genre: j-rap
genre: j-r&b
popularity: 10
followers: 717
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5b50cba65869c3a7dde000dad237e29f917e07f2d7ec0becefe288f45319b48b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/48f37ad2-c994-4819-aafd-32108ba25175.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/48f37ad2-c994-4819-aafd-32108ba25175.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/48f37ad2-c994-4819-aafd-32108ba25175
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5b50cba65869c3a7dde000dad237e29f917e07f2d7ec0becefe288f45319b48b","name":"剣 桃太郎","registered_at":"2026-06-16T15:02:29Z","symbol":"NIM1088821","token_address":"0x1691ed5ebcfecd738681400c348bc1f7373c8f5e","type":"artist","uuid":"48f37ad2-c994-4819-aafd-32108ba25175"}
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 0x5b50cba65869c3a7dde000dad237e29f917e07f2d7ec0becefe288f45319b48b. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/48f37ad2-c994-4819-aafd-32108ba25175.json and https://artists.proofprofile.net/proofs/artist/48f37ad2-c994-4819-aafd-32108ba25175.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x5b50cba65869c3a7dde000dad237e29f917e07f2d7ec0becefe288f45319b48b","name":"剣 桃太郎","registered_at":"2026-06-16T15:02:29Z","symbol":"NIM1088821","token_address":"0x1691ed5ebcfecd738681400c348bc1f7373c8f5e","type":"artist","uuid":"48f37ad2-c994-4819-aafd-32108ba25175"}
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