Il camioncino Leo
type: MusicGroup
popularity: 4
followers: 319
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5ed29c9a6eac1ae90abc058b6987bd4dc15fe0a8f4071cf4d8e222b4429c6ca0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f9a3275a-60ed-4f7e-9505-489ecd7f3bde.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f9a3275a-60ed-4f7e-9505-489ecd7f3bde.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f9a3275a-60ed-4f7e-9505-489ecd7f3bde
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5ed29c9a6eac1ae90abc058b6987bd4dc15fe0a8f4071cf4d8e222b4429c6ca0","name":"Il camioncino Leo","registered_at":"2026-06-21T16:43:04Z","symbol":"NIM1973474","token_address":"0x77baadd3b082f985b5cbea325acf90ed4d2f9460","type":"artist","uuid":"f9a3275a-60ed-4f7e-9505-489ecd7f3bde"}
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 0x5ed29c9a6eac1ae90abc058b6987bd4dc15fe0a8f4071cf4d8e222b4429c6ca0. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f9a3275a-60ed-4f7e-9505-489ecd7f3bde.json and https://artists.proofprofile.net/proofs/artist/f9a3275a-60ed-4f7e-9505-489ecd7f3bde.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0x5ed29c9a6eac1ae90abc058b6987bd4dc15fe0a8f4071cf4d8e222b4429c6ca0","name":"Il camioncino Leo","registered_at":"2026-06-21T16:43:04Z","symbol":"NIM1973474","token_address":"0x77baadd3b082f985b5cbea325acf90ed4d2f9460","type":"artist","uuid":"f9a3275a-60ed-4f7e-9505-489ecd7f3bde"}
album: Le canzoncine preferite di Leo
  type: MusicAlbum
  date published: 2021-05-18