Maartn
type: MusicGroup
genre: boom bap
popularity: 2
followers: 1031
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfbd513b8b85a20aeacea712562988ef854dc41cdb2354b54d83086017ad16378
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/775c008a-e990-41ee-80d7-92c6d4a16e49.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/775c008a-e990-41ee-80d7-92c6d4a16e49.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/775c008a-e990-41ee-80d7-92c6d4a16e49
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
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 0xfbd513b8b85a20aeacea712562988ef854dc41cdb2354b54d83086017ad16378. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/775c008a-e990-41ee-80d7-92c6d4a16e49.json and https://artists.proofprofile.net/proofs/artist/775c008a-e990-41ee-80d7-92c6d4a16e49.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
album: Fonky Fool
  type: MusicAlbum
  date published: 2017-06-21
album: Technical Knowledge
  type: MusicAlbum
  date published: 2018-05-20
album: Bad Habits
  type: MusicAlbum
  date published: 2018-12-10
album: The Way She Moves
  type: MusicAlbum
  date published: 2019-06-19
album: My Own Sunshine
  type: MusicAlbum
  date published: 2023-03-31
album: The Algorhythm
  type: MusicAlbum
  date published: 2023-05-19