Le Sieur De Machy
type: MusicGroup
description: Machy, known as Le Sieur de Machy (fl. 1655–1700) was a French viol player, composer, and teacher remembered principally for his Pièces de Violle en Musique et en Tablature (1685), a valuable source o
popularity: 2
followers: 39
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x36a331a551d414a9d8c2b5ffe9bf9591b2571aadb657014b6a51b26aa8919201
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7551836e-441b-4fc1-b6ef-72aff93de39f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7551836e-441b-4fc1-b6ef-72aff93de39f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7551836e-441b-4fc1-b6ef-72aff93de39f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x36a331a551d414a9d8c2b5ffe9bf9591b2571aadb657014b6a51b26aa8919201","name":"Le Sieur De Machy","registered_at":"2026-06-17T06:24:17Z","symbol":"NIM1308766","token_address":"0xad2fd77f3479d237bfaacbdfe3eba054e7e14aaf","type":"artist","uuid":"7551836e-441b-4fc1-b6ef-72aff93de39f"}
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 0x36a331a551d414a9d8c2b5ffe9bf9591b2571aadb657014b6a51b26aa8919201. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7551836e-441b-4fc1-b6ef-72aff93de39f.json and https://artists.proofprofile.net/proofs/artist/7551836e-441b-4fc1-b6ef-72aff93de39f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x36a331a551d414a9d8c2b5ffe9bf9591b2571aadb657014b6a51b26aa8919201","name":"Le Sieur De Machy","registered_at":"2026-06-17T06:24:17Z","symbol":"NIM1308766","token_address":"0xad2fd77f3479d237bfaacbdfe3eba054e7e14aaf","type":"artist","uuid":"7551836e-441b-4fc1-b6ef-72aff93de39f"}