Piano & Strings
type: MusicGroup
popularity: 5
followers: 61
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8f583052d12ffc6caca4f407230b971ebad202a16c93647704806b7717b26863
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954587
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954587
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bc447b4c-e645-4005-b0e5-07171d041fa2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bc447b4c-e645-4005-b0e5-07171d041fa2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bc447b4c-e645-4005-b0e5-07171d041fa2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T19:10:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8f583052d12ffc6caca4f407230b971ebad202a16c93647704806b7717b26863","name":"Piano & Strings","registered_at":"2026-06-20T17:29:58Z","symbol":"NIM1667536","token_address":"0x32d2d6cf8563e9617a4e1f235fb37ed5bab9305e","type":"artist","uuid":"bc447b4c-e645-4005-b0e5-07171d041fa2"}
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 0x8f583052d12ffc6caca4f407230b971ebad202a16c93647704806b7717b26863. Chain 2 (Bitcoin): anchored in block 954588 (2026-06-20T19:15:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bc447b4c-e645-4005-b0e5-07171d041fa2.json and https://artists.proofprofile.net/proofs/artist/bc447b4c-e645-4005-b0e5-07171d041fa2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T19:15:05Z
  text: {"copyright_id":"0x8f583052d12ffc6caca4f407230b971ebad202a16c93647704806b7717b26863","name":"Piano & Strings","registered_at":"2026-06-20T17:29:58Z","symbol":"NIM1667536","token_address":"0x32d2d6cf8563e9617a4e1f235fb37ed5bab9305e","type":"artist","uuid":"bc447b4c-e645-4005-b0e5-07171d041fa2"}