Piano Calmo
type: MusicGroup
popularity: 3
followers: 55
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x43b7fea7e9731cf84b0400439a81bd40856e0c4e0ab478e4fa247e8ac0da03f9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/73181be2-4714-47b5-864a-647724818f5a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/73181be2-4714-47b5-864a-647724818f5a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/73181be2-4714-47b5-864a-647724818f5a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x43b7fea7e9731cf84b0400439a81bd40856e0c4e0ab478e4fa247e8ac0da03f9","name":"Piano Calmo","registered_at":"2026-06-17T05:45:20Z","symbol":"NIM1299471","token_address":"0x75250524148e201e590c62fe9178bfb7eb284e5d","type":"artist","uuid":"73181be2-4714-47b5-864a-647724818f5a"}
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 0x43b7fea7e9731cf84b0400439a81bd40856e0c4e0ab478e4fa247e8ac0da03f9. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/73181be2-4714-47b5-864a-647724818f5a.json and https://artists.proofprofile.net/proofs/artist/73181be2-4714-47b5-864a-647724818f5a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x43b7fea7e9731cf84b0400439a81bd40856e0c4e0ab478e4fa247e8ac0da03f9","name":"Piano Calmo","registered_at":"2026-06-17T05:45:20Z","symbol":"NIM1299471","token_address":"0x75250524148e201e590c62fe9178bfb7eb284e5d","type":"artist","uuid":"73181be2-4714-47b5-864a-647724818f5a"}
album: Piano Suave
  type: MusicAlbum
  date published: 2023-03-24
album: Piano Lento E Tranquilo
  type: MusicAlbum
  date published: 2024-12-17
album: Música De Piano Calmante De Inverno
  type: MusicAlbum
  date published: 2025-01-07