Wanda Sassoon
type: MusicGroup
popularity: 2
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc2dae42c42d1f80c820ee243ae4ce374d79f59e236efbc4391ce1be4817db33e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ff996170-3c14-46d0-b3af-db6dfdced815.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ff996170-3c14-46d0-b3af-db6dfdced815.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ff996170-3c14-46d0-b3af-db6dfdced815
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc2dae42c42d1f80c820ee243ae4ce374d79f59e236efbc4391ce1be4817db33e","name":"Wanda Sassoon","registered_at":"2026-06-21T18:38:03Z","symbol":"NIM2001794","token_address":"0x86125da75502097538e03a54b571989bacf80569","type":"artist","uuid":"ff996170-3c14-46d0-b3af-db6dfdced815"}
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 0xc2dae42c42d1f80c820ee243ae4ce374d79f59e236efbc4391ce1be4817db33e. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ff996170-3c14-46d0-b3af-db6dfdced815.json and https://artists.proofprofile.net/proofs/artist/ff996170-3c14-46d0-b3af-db6dfdced815.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0xc2dae42c42d1f80c820ee243ae4ce374d79f59e236efbc4391ce1be4817db33e","name":"Wanda Sassoon","registered_at":"2026-06-21T18:38:03Z","symbol":"NIM2001794","token_address":"0x86125da75502097538e03a54b571989bacf80569","type":"artist","uuid":"ff996170-3c14-46d0-b3af-db6dfdced815"}
album: A Mirror of Solitude
  type: MusicAlbum
  date published: 2024-07-25
album: Hope in the Ruins
  type: MusicAlbum
  date published: 2024-08-05