MARC-ANDRÉ
type: MusicGroup
popularity: 16
followers: 2317
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x953a70b468b5cfc3a66fca850bbc8de33a291e2a8eced3fe1e3863ec3bda1b83
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953817
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953817
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f99cc544-5c68-4421-b170-49fbff1c383e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f99cc544-5c68-4421-b170-49fbff1c383e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f99cc544-5c68-4421-b170-49fbff1c383e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T18:10:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x953a70b468b5cfc3a66fca850bbc8de33a291e2a8eced3fe1e3863ec3bda1b83","name":"MARC-ANDRÉ","registered_at":"2026-06-15T06:39:59Z","symbol":"NIM0713507","token_address":"0x07d26ddcb2fc3484bdb07b1906c31f5f45b77cce","type":"artist","uuid":"f99cc544-5c68-4421-b170-49fbff1c383e"}
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 0x953a70b468b5cfc3a66fca850bbc8de33a291e2a8eced3fe1e3863ec3bda1b83. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f99cc544-5c68-4421-b170-49fbff1c383e.json and https://artists.proofprofile.net/proofs/artist/f99cc544-5c68-4421-b170-49fbff1c383e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T18:10:31Z
  text: {"copyright_id":"0x953a70b468b5cfc3a66fca850bbc8de33a291e2a8eced3fe1e3863ec3bda1b83","name":"MARC-ANDRÉ","registered_at":"2026-06-15T06:39:59Z","symbol":"NIM0713507","token_address":"0x07d26ddcb2fc3484bdb07b1906c31f5f45b77cce","type":"artist","uuid":"f99cc544-5c68-4421-b170-49fbff1c383e"}
album: Ave Maria
  type: MusicAlbum
  date published: 2022-09-16
album: Fly Me To The Moon
  type: MusicAlbum
  date published: 2022-09-24
album: Fly Me To The Moon
  type: MusicAlbum
  date published: 2022-09-24
album: Après Un Rêve
  type: MusicAlbum
  date published: 2022-11-08
album: Daydream
  type: MusicAlbum
  date published: 2022-12-01