The Grandaughters
type: MusicGroup
popularity: 7
followers: 116
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbada2c5cc6578daffd5230b9f0f8d1a441bb2f9ea8f5886476b63bc85b9b0f0b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953928
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953928
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1cd230f7-7c11-44b8-8a5a-44e9c8c4fa59.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1cd230f7-7c11-44b8-8a5a-44e9c8c4fa59.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1cd230f7-7c11-44b8-8a5a-44e9c8c4fa59
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T10:21:55Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbada2c5cc6578daffd5230b9f0f8d1a441bb2f9ea8f5886476b63bc85b9b0f0b","name":"The Grandaughters","registered_at":"2026-06-15T23:51:12Z","symbol":"NIM0871274","token_address":"0x5f06d48ecc0092b0d75a34e7d4a11c81c8b7bddd","type":"artist","uuid":"1cd230f7-7c11-44b8-8a5a-44e9c8c4fa59"}
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 0xbada2c5cc6578daffd5230b9f0f8d1a441bb2f9ea8f5886476b63bc85b9b0f0b. Chain 2 (Bitcoin): anchored in block 953928 (2026-06-16T10:21:55Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1cd230f7-7c11-44b8-8a5a-44e9c8c4fa59.json and https://artists.proofprofile.net/proofs/artist/1cd230f7-7c11-44b8-8a5a-44e9c8c4fa59.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T10:21:55Z
  text: {"copyright_id":"0xbada2c5cc6578daffd5230b9f0f8d1a441bb2f9ea8f5886476b63bc85b9b0f0b","name":"The Grandaughters","registered_at":"2026-06-15T23:51:12Z","symbol":"NIM0871274","token_address":"0x5f06d48ecc0092b0d75a34e7d4a11c81c8b7bddd","type":"artist","uuid":"1cd230f7-7c11-44b8-8a5a-44e9c8c4fa59"}
album: The Granddaughters
  type: MusicAlbum
  date published: 2008-09-23
album: Wooden Floors
  type: MusicAlbum
  date published: 2009-04-13
album: Smile
  type: MusicAlbum
  date published: 2011-01-01
album: Amber
  type: MusicAlbum
  date published: 2011-01-01