Master H
type: MusicGroup
popularity: 27
followers: 2040
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x13e728b1a3e02c3c54e1d8c1e99ab92bb2846f275d3dbd0de3facec773613385
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/700539b4-46af-491d-b350-e6bf6a7a7dfe.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/700539b4-46af-491d-b350-e6bf6a7a7dfe.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/700539b4-46af-491d-b350-e6bf6a7a7dfe
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x13e728b1a3e02c3c54e1d8c1e99ab92bb2846f275d3dbd0de3facec773613385","name":"Master H","registered_at":"2026-06-12T00:46:14Z","symbol":"NIM0146554","token_address":"0x0f5a5cb2ac6959ca53970cefe0bcc2f71dc4c443","type":"artist","uuid":"700539b4-46af-491d-b350-e6bf6a7a7dfe"}
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 0x13e728b1a3e02c3c54e1d8c1e99ab92bb2846f275d3dbd0de3facec773613385. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/700539b4-46af-491d-b350-e6bf6a7a7dfe.json and https://artists.proofprofile.net/proofs/artist/700539b4-46af-491d-b350-e6bf6a7a7dfe.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x13e728b1a3e02c3c54e1d8c1e99ab92bb2846f275d3dbd0de3facec773613385","name":"Master H","registered_at":"2026-06-12T00:46:14Z","symbol":"NIM0146554","token_address":"0x0f5a5cb2ac6959ca53970cefe0bcc2f71dc4c443","type":"artist","uuid":"700539b4-46af-491d-b350-e6bf6a7a7dfe"}
album: Tula
  type: MusicAlbum
  date published: 2024-06-06