Piano Echoes
type: MusicGroup
popularity: 2
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x075e9e454b420b9c6ea611368f73b77e8ed136ec16048361c41a5c36f58509ea
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9a64e308-0965-493f-b5ba-4932dbe6dd55.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9a64e308-0965-493f-b5ba-4932dbe6dd55.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9a64e308-0965-493f-b5ba-4932dbe6dd55
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x075e9e454b420b9c6ea611368f73b77e8ed136ec16048361c41a5c36f58509ea","name":"Piano Echoes","registered_at":"2026-06-17T19:30:20Z","symbol":"NIM1496199","token_address":"0xe95a8af3d548a7655a65a7487e9deae433297b87","type":"artist","uuid":"9a64e308-0965-493f-b5ba-4932dbe6dd55"}
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 0x075e9e454b420b9c6ea611368f73b77e8ed136ec16048361c41a5c36f58509ea. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9a64e308-0965-493f-b5ba-4932dbe6dd55.json and https://artists.proofprofile.net/proofs/artist/9a64e308-0965-493f-b5ba-4932dbe6dd55.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0x075e9e454b420b9c6ea611368f73b77e8ed136ec16048361c41a5c36f58509ea","name":"Piano Echoes","registered_at":"2026-06-17T19:30:20Z","symbol":"NIM1496199","token_address":"0xe95a8af3d548a7655a65a7487e9deae433297b87","type":"artist","uuid":"9a64e308-0965-493f-b5ba-4932dbe6dd55"}
album: Daydreamer
  type: MusicAlbum
  date published: 2025-03-31