Mariangela Demurtas
type: MusicGroup
popularity: 4
followers: 992
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7e7a826d535cafc10dc7a7e19bfeac527b4da1f18a2ed45527dcffe5ae99566a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fc17ef4d-2734-4b67-98e5-c48d3f2862fd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fc17ef4d-2734-4b67-98e5-c48d3f2862fd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fc17ef4d-2734-4b67-98e5-c48d3f2862fd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7e7a826d535cafc10dc7a7e19bfeac527b4da1f18a2ed45527dcffe5ae99566a","name":"Mariangela Demurtas","registered_at":"2026-06-21T17:39:41Z","symbol":"NIM1986220","token_address":"0x9db1f0e6ad854440d0e32aeb38f2c9098961f47a","type":"artist","uuid":"fc17ef4d-2734-4b67-98e5-c48d3f2862fd"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e7a826d535cafc10dc7a7e19bfeac527b4da1f18a2ed45527dcffe5ae99566a. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fc17ef4d-2734-4b67-98e5-c48d3f2862fd.json and https://artists.proofprofile.net/proofs/artist/fc17ef4d-2734-4b67-98e5-c48d3f2862fd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0x7e7a826d535cafc10dc7a7e19bfeac527b4da1f18a2ed45527dcffe5ae99566a","name":"Mariangela Demurtas","registered_at":"2026-06-21T17:39:41Z","symbol":"NIM1986220","token_address":"0x9db1f0e6ad854440d0e32aeb38f2c9098961f47a","type":"artist","uuid":"fc17ef4d-2734-4b67-98e5-c48d3f2862fd"}
album: City
  type: MusicAlbum
  date published: 2021-12-03
album: Classic
  type: MusicAlbum
  date published: 2022-01-28
album: Dark Ability
  type: MusicAlbum
  date published: 2022-02-11