Stéphane De May
type: MusicGroup
genre: chamber music
genre: classical piano
popularity: 9
followers: 217
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc821ef03e91ed32ca08a52a37bf872fe88c275d99460fa493eb057ce2842baf5
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/5549f7f1-34b0-4d68-9a75-ca0d68e8f6c5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5549f7f1-34b0-4d68-9a75-ca0d68e8f6c5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5549f7f1-34b0-4d68-9a75-ca0d68e8f6c5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc821ef03e91ed32ca08a52a37bf872fe88c275d99460fa493eb057ce2842baf5","name":"Stéphane De May","registered_at":"2026-06-16T19:17:40Z","symbol":"NIM1149693","token_address":"0x370cd362b2f1269b7fccb421135348f728c48d2e","type":"artist","uuid":"5549f7f1-34b0-4d68-9a75-ca0d68e8f6c5"}
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 0xc821ef03e91ed32ca08a52a37bf872fe88c275d99460fa493eb057ce2842baf5. 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/5549f7f1-34b0-4d68-9a75-ca0d68e8f6c5.json and https://artists.proofprofile.net/proofs/artist/5549f7f1-34b0-4d68-9a75-ca0d68e8f6c5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0xc821ef03e91ed32ca08a52a37bf872fe88c275d99460fa493eb057ce2842baf5","name":"Stéphane De May","registered_at":"2026-06-16T19:17:40Z","symbol":"NIM1149693","token_address":"0x370cd362b2f1269b7fccb421135348f728c48d2e","type":"artist","uuid":"5549f7f1-34b0-4d68-9a75-ca0d68e8f6c5"}
album: Chopin: Piano Concertos Nos. 1 & 2
  type: MusicAlbum
  date published: 2015-09-25