Marco Marcheselli
type: MusicGroup
genre: polka
popularity: 3
followers: 58
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc7ee9886903e8d39917afc56f2364662b6fe76056a1e4a5a5f1e49a18b0edd6e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954139
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954139
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/80311aee-c25c-4149-9da2-1b8847aaaade.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/80311aee-c25c-4149-9da2-1b8847aaaade.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/80311aee-c25c-4149-9da2-1b8847aaaade
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T21:12:18Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc7ee9886903e8d39917afc56f2364662b6fe76056a1e4a5a5f1e49a18b0edd6e","name":"Marco Marcheselli","registered_at":"2026-06-17T10:15:24Z","symbol":"NIM1363859","token_address":"0x060c10d212eb488446212d1f16c6dc8c4a484975","type":"artist","uuid":"80311aee-c25c-4149-9da2-1b8847aaaade"}
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 0xc7ee9886903e8d39917afc56f2364662b6fe76056a1e4a5a5f1e49a18b0edd6e. Chain 2 (Bitcoin): anchored in block 954139 (2026-06-17T21:12:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/80311aee-c25c-4149-9da2-1b8847aaaade.json and https://artists.proofprofile.net/proofs/artist/80311aee-c25c-4149-9da2-1b8847aaaade.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T21:12:18Z
  text: {"copyright_id":"0xc7ee9886903e8d39917afc56f2364662b6fe76056a1e4a5a5f1e49a18b0edd6e","name":"Marco Marcheselli","registered_at":"2026-06-17T10:15:24Z","symbol":"NIM1363859","token_address":"0x060c10d212eb488446212d1f16c6dc8c4a484975","type":"artist","uuid":"80311aee-c25c-4149-9da2-1b8847aaaade"}
album: Marcheselli suona Marcheselli (Musica alla filuzzi)
  type: MusicAlbum
  date published: 1984-03-15