Piano Land
type: MusicGroup
popularity: 33
followers: 282
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa45e266489131edd9ed4f9444b197ec156667a8501611bf7b5da50a23cfcddee
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/453107e2-b1e1-4847-abb8-51763c0a9ab4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/453107e2-b1e1-4847-abb8-51763c0a9ab4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/453107e2-b1e1-4847-abb8-51763c0a9ab4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa45e266489131edd9ed4f9444b197ec156667a8501611bf7b5da50a23cfcddee","name":"Piano Land","registered_at":"2026-06-11T18:45:04Z","symbol":"NIM0089582","token_address":"0xec7ab22bd0e5274ac3f04efd8033602cbf871b22","type":"artist","uuid":"453107e2-b1e1-4847-abb8-51763c0a9ab4"}
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 0xa45e266489131edd9ed4f9444b197ec156667a8501611bf7b5da50a23cfcddee. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/453107e2-b1e1-4847-abb8-51763c0a9ab4.json and https://artists.proofprofile.net/proofs/artist/453107e2-b1e1-4847-abb8-51763c0a9ab4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0xa45e266489131edd9ed4f9444b197ec156667a8501611bf7b5da50a23cfcddee","name":"Piano Land","registered_at":"2026-06-11T18:45:04Z","symbol":"NIM0089582","token_address":"0xec7ab22bd0e5274ac3f04efd8033602cbf871b22","type":"artist","uuid":"453107e2-b1e1-4847-abb8-51763c0a9ab4"}
album: Discovering New Piano Sounds
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