Sandrine Marchetti
type: MusicGroup
genre: folk pop
popularity: 3
followers: 85
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x380fbb28232c3b7123f66b5fbeea1d996e7e76ca16986c45af17a3754fca618b
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/4c2be565-5b8d-4bee-a98e-e967ff0fb3d1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4c2be565-5b8d-4bee-a98e-e967ff0fb3d1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4c2be565-5b8d-4bee-a98e-e967ff0fb3d1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x380fbb28232c3b7123f66b5fbeea1d996e7e76ca16986c45af17a3754fca618b","name":"Sandrine Marchetti","registered_at":"2026-06-16T16:06:09Z","symbol":"NIM1104017","token_address":"0xed360d3ef06f547531302123f97b5a9e2f1c6123","type":"artist","uuid":"4c2be565-5b8d-4bee-a98e-e967ff0fb3d1"}
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 0x380fbb28232c3b7123f66b5fbeea1d996e7e76ca16986c45af17a3754fca618b. 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/4c2be565-5b8d-4bee-a98e-e967ff0fb3d1.json and https://artists.proofprofile.net/proofs/artist/4c2be565-5b8d-4bee-a98e-e967ff0fb3d1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x380fbb28232c3b7123f66b5fbeea1d996e7e76ca16986c45af17a3754fca618b","name":"Sandrine Marchetti","registered_at":"2026-06-16T16:06:09Z","symbol":"NIM1104017","token_address":"0xed360d3ef06f547531302123f97b5a9e2f1c6123","type":"artist","uuid":"4c2be565-5b8d-4bee-a98e-e967ff0fb3d1"}
album: Flaws
  type: MusicAlbum
  date published: 2024-03-15