DI LEO
type: MusicGroup
description: Di Leo is a surname of Italian origin. Notable people with the surname include: Fernando Di Leo (1932–2003), Italian film director and script writer Gregorio Di Leo (born 1983), Italian professiona
popularity: 3
followers: 71
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa8cf1999a14ba53a320747fc7e7a74d5bab8b6627368500528d4dbbaea778523
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953864
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953864
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/03598837-4280-4094-984c-b48489cfd4e0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/03598837-4280-4094-984c-b48489cfd4e0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/03598837-4280-4094-984c-b48489cfd4e0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T00:30:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa8cf1999a14ba53a320747fc7e7a74d5bab8b6627368500528d4dbbaea778523","name":"DI LEO","registered_at":"2026-06-15T14:55:06Z","symbol":"NIM0743358","token_address":"0xe5b27695b4d51e6652674395a1f09970d2c0a683","type":"artist","uuid":"03598837-4280-4094-984c-b48489cfd4e0"}
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 0xa8cf1999a14ba53a320747fc7e7a74d5bab8b6627368500528d4dbbaea778523. Chain 2 (Bitcoin): anchored in block 953877 (2026-06-16T02:39:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/03598837-4280-4094-984c-b48489cfd4e0.json and https://artists.proofprofile.net/proofs/artist/03598837-4280-4094-984c-b48489cfd4e0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T02:39:16Z
  text: {"copyright_id":"0xa8cf1999a14ba53a320747fc7e7a74d5bab8b6627368500528d4dbbaea778523","name":"DI LEO","registered_at":"2026-06-15T14:55:06Z","symbol":"NIM0743358","token_address":"0xe5b27695b4d51e6652674395a1f09970d2c0a683","type":"artist","uuid":"03598837-4280-4094-984c-b48489cfd4e0"}
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