The Sistars
type: MusicGroup
popularity: 6
followers: 2
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x84b0bd3867886341f1ce3aaf7697b149a860a552b0712515f519a6d8dde3af9f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bcf9acf5-21f4-4bc3-aead-7113a6197fc5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bcf9acf5-21f4-4bc3-aead-7113a6197fc5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bcf9acf5-21f4-4bc3-aead-7113a6197fc5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x84b0bd3867886341f1ce3aaf7697b149a860a552b0712515f519a6d8dde3af9f","name":"The Sistars","registered_at":"2026-06-20T17:37:06Z","symbol":"NIM1668936","token_address":"0x4fd4f51b5d80ca0ef03b660e755465275829e9ad","type":"artist","uuid":"bcf9acf5-21f4-4bc3-aead-7113a6197fc5"}
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 0x84b0bd3867886341f1ce3aaf7697b149a860a552b0712515f519a6d8dde3af9f. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bcf9acf5-21f4-4bc3-aead-7113a6197fc5.json and https://artists.proofprofile.net/proofs/artist/bcf9acf5-21f4-4bc3-aead-7113a6197fc5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x84b0bd3867886341f1ce3aaf7697b149a860a552b0712515f519a6d8dde3af9f","name":"The Sistars","registered_at":"2026-06-20T17:37:06Z","symbol":"NIM1668936","token_address":"0x4fd4f51b5d80ca0ef03b660e755465275829e9ad","type":"artist","uuid":"bcf9acf5-21f4-4bc3-aead-7113a6197fc5"}
album: 飛べない鳥
  type: MusicAlbum
  date published: 2025-10-24