Sample Hz
type: MusicGroup
popularity: 15
followers: 16
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb5ee3b01b9cc9e0f81e14486c702c81275cde560dd11018a2d0248febf971791
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953777
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953777
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cb68d3ef-f2bc-44a6-9665-fe4fbec173bb.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cb68d3ef-f2bc-44a6-9665-fe4fbec173bb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cb68d3ef-f2bc-44a6-9665-fe4fbec173bb
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T11:52:51Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb5ee3b01b9cc9e0f81e14486c702c81275cde560dd11018a2d0248febf971791","name":"Sample Hz","registered_at":"2026-06-15T01:59:33Z","symbol":"NIM0646568","token_address":"0x0882baa67a7ad05418ef49cd93d74280329cd458","type":"artist","uuid":"cb68d3ef-f2bc-44a6-9665-fe4fbec173bb"}
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 0xb5ee3b01b9cc9e0f81e14486c702c81275cde560dd11018a2d0248febf971791. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cb68d3ef-f2bc-44a6-9665-fe4fbec173bb.json and https://artists.proofprofile.net/proofs/artist/cb68d3ef-f2bc-44a6-9665-fe4fbec173bb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T11:52:51Z
  text: {"copyright_id":"0xb5ee3b01b9cc9e0f81e14486c702c81275cde560dd11018a2d0248febf971791","name":"Sample Hz","registered_at":"2026-06-15T01:59:33Z","symbol":"NIM0646568","token_address":"0x0882baa67a7ad05418ef49cd93d74280329cd458","type":"artist","uuid":"cb68d3ef-f2bc-44a6-9665-fe4fbec173bb"}
album: Under The Waterfall
  type: MusicAlbum
  date published: 2021-02-24
album: Waves of Pink Noise
  type: MusicAlbum
  date published: 2023-01-20
album: Pink Sand Beaches for a Relaxing Vacation
  type: MusicAlbum
  date published: 2023-06-23
album: Muffled Motorway Muse
  type: MusicAlbum
  date published: 2023-11-24