Jérôme Pichon
type: MusicGroup
description: Baron Jérome-Frédéric Pichon (3 December 1812 – 26 August 1896) was a 19th-century French bibliographer and bibliophile. He was one of the most important French art collectors of his time. Biography
popularity: 4
followers: 39
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x708e13eecb1c3c28ac3bf5ffb7f7f25a1d5db0494e75fa782efa08c02ff32f80
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954023
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954023
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/37ed3d64-6788-4ac5-a252-75b53eb607b7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/37ed3d64-6788-4ac5-a252-75b53eb607b7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/37ed3d64-6788-4ac5-a252-75b53eb607b7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T23:57:23Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x708e13eecb1c3c28ac3bf5ffb7f7f25a1d5db0494e75fa782efa08c02ff32f80","name":"Jérôme Pichon","registered_at":"2026-06-16T09:00:57Z","symbol":"NIM1002570","token_address":"0x55a757eacb68a9b580e423cc8761ecdb2db1befb","type":"artist","uuid":"37ed3d64-6788-4ac5-a252-75b53eb607b7"}
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 0x708e13eecb1c3c28ac3bf5ffb7f7f25a1d5db0494e75fa782efa08c02ff32f80. Chain 2 (Bitcoin): anchored in block 954023 (2026-06-16T23:57:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/37ed3d64-6788-4ac5-a252-75b53eb607b7.json and https://artists.proofprofile.net/proofs/artist/37ed3d64-6788-4ac5-a252-75b53eb607b7.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T23:57:23Z
  text: {"copyright_id":"0x708e13eecb1c3c28ac3bf5ffb7f7f25a1d5db0494e75fa782efa08c02ff32f80","name":"Jérôme Pichon","registered_at":"2026-06-16T09:00:57Z","symbol":"NIM1002570","token_address":"0x55a757eacb68a9b580e423cc8761ecdb2db1befb","type":"artist","uuid":"37ed3d64-6788-4ac5-a252-75b53eb607b7"}
album: Chilled Indie Songs
  type: MusicAlbum
  date published: 2019-07-23
album: Chilled Indie Songs
  type: MusicAlbum
  date published: 2019-07-23
album: Endors-toi
  type: MusicAlbum
  date published: 2025-10-03