Denis Comtet
type: MusicGroup
genre: gregorian chant
description: Denis Comtet (born 30 April 1970) is a French organist, pianist, choral conductor, and conductor. Biography Training Born in Versailles, Denis Comtet studied organ with Gaston Litaize at the Sain
popularity: 8
followers: 30
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x78399cd9b7fe93b520bce876682d5e21fe83fb0602425e7a15114143f1ad5ce2
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/5270f1e5-98ec-48c5-a298-bae50247db4b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5270f1e5-98ec-48c5-a298-bae50247db4b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5270f1e5-98ec-48c5-a298-bae50247db4b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x78399cd9b7fe93b520bce876682d5e21fe83fb0602425e7a15114143f1ad5ce2","name":"Denis Comtet","registered_at":"2026-06-16T18:15:28Z","symbol":"NIM1134860","token_address":"0xeea53e2b8b320b80ea9b26cb391392a26798d36d","type":"artist","uuid":"5270f1e5-98ec-48c5-a298-bae50247db4b"}
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 0x78399cd9b7fe93b520bce876682d5e21fe83fb0602425e7a15114143f1ad5ce2. 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/5270f1e5-98ec-48c5-a298-bae50247db4b.json and https://artists.proofprofile.net/proofs/artist/5270f1e5-98ec-48c5-a298-bae50247db4b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x78399cd9b7fe93b520bce876682d5e21fe83fb0602425e7a15114143f1ad5ce2","name":"Denis Comtet","registered_at":"2026-06-16T18:15:28Z","symbol":"NIM1134860","token_address":"0xeea53e2b8b320b80ea9b26cb391392a26798d36d","type":"artist","uuid":"5270f1e5-98ec-48c5-a298-bae50247db4b"}