Piano Smooth
type: MusicGroup
popularity: 8
followers: 285
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbef50d86fcb8cc805f2d2a93f4130ee0917a90e7b731bb67e9a61a960eb4cafa
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953842
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953842
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0046306b-a787-4553-aaf6-cb3b12a5f35f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0046306b-a787-4553-aaf6-cb3b12a5f35f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0046306b-a787-4553-aaf6-cb3b12a5f35f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T22:22:30Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbef50d86fcb8cc805f2d2a93f4130ee0917a90e7b731bb67e9a61a960eb4cafa","name":"Piano Smooth","registered_at":"2026-06-15T13:45:59Z","symbol":"NIM0726851","token_address":"0x76f34de1d8df3ae7bec69dc8c419252cd5955113","type":"artist","uuid":"0046306b-a787-4553-aaf6-cb3b12a5f35f"}
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 0xbef50d86fcb8cc805f2d2a93f4130ee0917a90e7b731bb67e9a61a960eb4cafa. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0046306b-a787-4553-aaf6-cb3b12a5f35f.json and https://artists.proofprofile.net/proofs/artist/0046306b-a787-4553-aaf6-cb3b12a5f35f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T22:22:30Z
  text: {"copyright_id":"0xbef50d86fcb8cc805f2d2a93f4130ee0917a90e7b731bb67e9a61a960eb4cafa","name":"Piano Smooth","registered_at":"2026-06-15T13:45:59Z","symbol":"NIM0726851","token_address":"0x76f34de1d8df3ae7bec69dc8c419252cd5955113","type":"artist","uuid":"0046306b-a787-4553-aaf6-cb3b12a5f35f"}
album: Smooth Piano for Relaxation, Sleep, Study, Therapy, Chill, Zen, Calm, Soft, Ballad, Serenity, Yoga, Meditation
  type: MusicAlbum
  date published: 2019-02-13
album: Relax with Piano
  type: MusicAlbum
  date published: 2024-03-04
album: Peaceful Solitude
  type: MusicAlbum
  date published: 2024-09-23