Michel Plasson
type: MusicGroup
genre: requiem
description: Michel Plasson (born 2 October 1933, Paris, France) is a French conductor. Plasson was a student of Lazare Lévy at the Conservatoire de Paris. In 1962, he was a prize-winner at the International Bes
popularity: 2
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x54d448dc4c054549fef8ca152eb16e0334c13d9ae7588e20cfb368f2eb06200a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/927afd5e-d590-467d-8cae-638fb617685b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/927afd5e-d590-467d-8cae-638fb617685b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/927afd5e-d590-467d-8cae-638fb617685b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x54d448dc4c054549fef8ca152eb16e0334c13d9ae7588e20cfb368f2eb06200a","name":"Michel Plasson","registered_at":"2026-06-17T16:45:55Z","symbol":"NIM1456949","token_address":"0x521e9cf11fb1f9c7c55884424ed0d2ec4acbe7f7","type":"artist","uuid":"927afd5e-d590-467d-8cae-638fb617685b"}
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 0x54d448dc4c054549fef8ca152eb16e0334c13d9ae7588e20cfb368f2eb06200a. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/927afd5e-d590-467d-8cae-638fb617685b.json and https://artists.proofprofile.net/proofs/artist/927afd5e-d590-467d-8cae-638fb617685b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0x54d448dc4c054549fef8ca152eb16e0334c13d9ae7588e20cfb368f2eb06200a","name":"Michel Plasson","registered_at":"2026-06-17T16:45:55Z","symbol":"NIM1456949","token_address":"0x521e9cf11fb1f9c7c55884424ed0d2ec4acbe7f7","type":"artist","uuid":"927afd5e-d590-467d-8cae-638fb617685b"}