Harmonika Uni
type: MusicGroup
popularity: 2
followers: 33
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc26519eb314c8d84002ae7c323e92c36ce8865e5e7bd72937b2c0d3684590da7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953996
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953996
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/30f38dbd-3ae0-46e1-a7e5-a456d85e16d0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/30f38dbd-3ae0-46e1-a7e5-a456d85e16d0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/30f38dbd-3ae0-46e1-a7e5-a456d85e16d0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T20:04:35Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc26519eb314c8d84002ae7c323e92c36ce8865e5e7bd72937b2c0d3684590da7","name":"Harmonika Uni","registered_at":"2026-06-16T06:34:23Z","symbol":"NIM0967570","token_address":"0xdf9c3ae96bd2f7abf520b85040a0c4c3b2ff3741","type":"artist","uuid":"30f38dbd-3ae0-46e1-a7e5-a456d85e16d0"}
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 0xc26519eb314c8d84002ae7c323e92c36ce8865e5e7bd72937b2c0d3684590da7. Chain 2 (Bitcoin): anchored in block 953996 (2026-06-16T20:04:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/30f38dbd-3ae0-46e1-a7e5-a456d85e16d0.json and https://artists.proofprofile.net/proofs/artist/30f38dbd-3ae0-46e1-a7e5-a456d85e16d0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:04:35Z
  text: {"copyright_id":"0xc26519eb314c8d84002ae7c323e92c36ce8865e5e7bd72937b2c0d3684590da7","name":"Harmonika Uni","registered_at":"2026-06-16T06:34:23Z","symbol":"NIM0967570","token_address":"0xdf9c3ae96bd2f7abf520b85040a0c4c3b2ff3741","type":"artist","uuid":"30f38dbd-3ae0-46e1-a7e5-a456d85e16d0"}
album: Aufg'spielt 2024
  type: MusicAlbum
  date published: 2024-11-15