Marie-Anne Collot
type: MusicGroup
description: thumb|Portrait by Pierre-Etienne Falconet, 1773, oils; Museum of Fine Arts of Nancy thumb|Head of Peter the Great, study for the Bronze Horseman, c. 1768—1770; Russian Museum, Saint Petersburg. Marie-
popularity: 4
followers: 6
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x45e3afcef4b8c11cd9453eb985cbba16c54b649c678ae3341ee56fcd2f87560c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4ac1b380-8317-42af-b3bb-508b2dd66732.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4ac1b380-8317-42af-b3bb-508b2dd66732.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4ac1b380-8317-42af-b3bb-508b2dd66732
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x45e3afcef4b8c11cd9453eb985cbba16c54b649c678ae3341ee56fcd2f87560c","name":"Marie-Anne Collot","registered_at":"2026-06-16T15:57:34Z","symbol":"NIM1101963","token_address":"0x963498648dab96ec9f53defe745e5955299cbcea","type":"artist","uuid":"4ac1b380-8317-42af-b3bb-508b2dd66732"}
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 0x45e3afcef4b8c11cd9453eb985cbba16c54b649c678ae3341ee56fcd2f87560c. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4ac1b380-8317-42af-b3bb-508b2dd66732.json and https://artists.proofprofile.net/proofs/artist/4ac1b380-8317-42af-b3bb-508b2dd66732.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x45e3afcef4b8c11cd9453eb985cbba16c54b649c678ae3341ee56fcd2f87560c","name":"Marie-Anne Collot","registered_at":"2026-06-16T15:57:34Z","symbol":"NIM1101963","token_address":"0x963498648dab96ec9f53defe745e5955299cbcea","type":"artist","uuid":"4ac1b380-8317-42af-b3bb-508b2dd66732"}
album: Massages musique (Musique relaxante pour le bien-être)
  type: MusicAlbum
  date published: 2014-05-24