M. Haja Maideen
type: MusicGroup
genre: gnawa
genre: qawwali
genre: sufi
popularity: 6
followers: 41
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x13f0557be950ae9af387874811cdef4981606a23d47ceac55151f6a7cfb0a1e8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953970
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953970
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/29710833-04c4-4426-a20a-cd4ac6392137.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/29710833-04c4-4426-a20a-cd4ac6392137.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/29710833-04c4-4426-a20a-cd4ac6392137
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T16:09:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x13f0557be950ae9af387874811cdef4981606a23d47ceac55151f6a7cfb0a1e8","name":"M. Haja Maideen","registered_at":"2026-06-16T04:15:27Z","symbol":"NIM0934375","token_address":"0x7c6dad156ed6ff9bd52d1c42c1dcd9c96761a435","type":"artist","uuid":"29710833-04c4-4426-a20a-cd4ac6392137"}
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 0x13f0557be950ae9af387874811cdef4981606a23d47ceac55151f6a7cfb0a1e8. Chain 2 (Bitcoin): anchored in block 953970 (2026-06-16T16:09:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/29710833-04c4-4426-a20a-cd4ac6392137.json and https://artists.proofprofile.net/proofs/artist/29710833-04c4-4426-a20a-cd4ac6392137.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T16:09:39Z
  text: {"copyright_id":"0x13f0557be950ae9af387874811cdef4981606a23d47ceac55151f6a7cfb0a1e8","name":"M. Haja Maideen","registered_at":"2026-06-16T04:15:27Z","symbol":"NIM0934375","token_address":"0x7c6dad156ed6ff9bd52d1c42c1dcd9c96761a435","type":"artist","uuid":"29710833-04c4-4426-a20a-cd4ac6392137"}