Piano Focus
type: MusicGroup
popularity: 18
followers: 126
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2a32973d761e1fc38db580329ac4d3523cc60fbf352166dea35dd3aea49813d6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953674
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953674
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/595cf6af-ec87-43f2-81cc-df38430f408e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/595cf6af-ec87-43f2-81cc-df38430f408e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/595cf6af-ec87-43f2-81cc-df38430f408e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T19:07:16Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2a32973d761e1fc38db580329ac4d3523cc60fbf352166dea35dd3aea49813d6","name":"Piano Focus","registered_at":"2026-06-14T13:55:42Z","symbol":"NIM0473840","token_address":"0x22dd700cb15d61a67be6adb9b4b478d1a2a20f08","type":"artist","uuid":"595cf6af-ec87-43f2-81cc-df38430f408e"}
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 0x2a32973d761e1fc38db580329ac4d3523cc60fbf352166dea35dd3aea49813d6. Chain 2 (Bitcoin): anchored in block 953674 (2026-06-14T19:07:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/595cf6af-ec87-43f2-81cc-df38430f408e.json and https://artists.proofprofile.net/proofs/artist/595cf6af-ec87-43f2-81cc-df38430f408e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T19:07:16Z
  text: {"copyright_id":"0x2a32973d761e1fc38db580329ac4d3523cc60fbf352166dea35dd3aea49813d6","name":"Piano Focus","registered_at":"2026-06-14T13:55:42Z","symbol":"NIM0473840","token_address":"0x22dd700cb15d61a67be6adb9b4b478d1a2a20f08","type":"artist","uuid":"595cf6af-ec87-43f2-81cc-df38430f408e"}
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  type: MusicAlbum
  date published: 2017-05-29
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