A.T. Mahmud
type: MusicGroup
genre: sholawat
popularity: 6
followers: 145
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfd266d8a7fd6d7a5fe44b16a802327097574349b49b931c8080998f97548b72f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954659
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954659
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dc9bd04b-95c1-40d1-b9ad-0d7ff3bdcd34.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dc9bd04b-95c1-40d1-b9ad-0d7ff3bdcd34.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/dc9bd04b-95c1-40d1-b9ad-0d7ff3bdcd34
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T06:14:42Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfd266d8a7fd6d7a5fe44b16a802327097574349b49b931c8080998f97548b72f","name":"A.T. Mahmud","registered_at":"2026-06-21T05:09:36Z","symbol":"NIM1829626","token_address":"0x1e6ed55b99f9ccc8e122f29d5c2d479fe7b17d46","type":"artist","uuid":"dc9bd04b-95c1-40d1-b9ad-0d7ff3bdcd34"}
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 0xfd266d8a7fd6d7a5fe44b16a802327097574349b49b931c8080998f97548b72f. Chain 2 (Bitcoin): anchored in block 954659 (2026-06-21T06:14:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dc9bd04b-95c1-40d1-b9ad-0d7ff3bdcd34.json and https://artists.proofprofile.net/proofs/artist/dc9bd04b-95c1-40d1-b9ad-0d7ff3bdcd34.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T06:14:42Z
  text: {"copyright_id":"0xfd266d8a7fd6d7a5fe44b16a802327097574349b49b931c8080998f97548b72f","name":"A.T. Mahmud","registered_at":"2026-06-21T05:09:36Z","symbol":"NIM1829626","token_address":"0x1e6ed55b99f9ccc8e122f29d5c2d479fe7b17d46","type":"artist","uuid":"dc9bd04b-95c1-40d1-b9ad-0d7ff3bdcd34"}