Mari Persen
type: MusicGroup
popularity: 3
followers: 440
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x99a6368cd444cdeaaf78b19ddf21fe6c79c9b9cdd0359d3d3a4e6d53a0d7a62e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954062
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954062
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/46947d0a-54bd-4869-bfa3-fd42fb5a1155.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/46947d0a-54bd-4869-bfa3-fd42fb5a1155.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/46947d0a-54bd-4869-bfa3-fd42fb5a1155
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T07:39:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x99a6368cd444cdeaaf78b19ddf21fe6c79c9b9cdd0359d3d3a4e6d53a0d7a62e","name":"Mari Persen","registered_at":"2026-06-16T14:30:25Z","symbol":"NIM1081156","token_address":"0x005e2d591e3b76c46b83e6e81263d7082216e342","type":"artist","uuid":"46947d0a-54bd-4869-bfa3-fd42fb5a1155"}
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 0x99a6368cd444cdeaaf78b19ddf21fe6c79c9b9cdd0359d3d3a4e6d53a0d7a62e. Chain 2 (Bitcoin): anchored in block 954062 (2026-06-17T07:39:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/46947d0a-54bd-4869-bfa3-fd42fb5a1155.json and https://artists.proofprofile.net/proofs/artist/46947d0a-54bd-4869-bfa3-fd42fb5a1155.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T07:39:10Z
  text: {"copyright_id":"0x99a6368cd444cdeaaf78b19ddf21fe6c79c9b9cdd0359d3d3a4e6d53a0d7a62e","name":"Mari Persen","registered_at":"2026-06-16T14:30:25Z","symbol":"NIM1081156","token_address":"0x005e2d591e3b76c46b83e6e81263d7082216e342","type":"artist","uuid":"46947d0a-54bd-4869-bfa3-fd42fb5a1155"}
album: Melody
  type: MusicAlbum
  date published: 2009-06-01
album: Mari Persen
  type: MusicAlbum
  date published: 2009-09-28
album: Mari Persen
  type: MusicAlbum
  date published: 2009-09-28
album: Kom no
  type: MusicAlbum
  date published: 2016-06-24