Er Leccazizze
type: MusicGroup
genre: meme rap
popularity: 10
followers: 77
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x710813e7375ecdb38b4b4a3c6aaef66abb2676b038f9fdc4ab1249a42d411b59
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/567ba6c8-a59b-4ba9-affd-c996c4facfa6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/567ba6c8-a59b-4ba9-affd-c996c4facfa6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/567ba6c8-a59b-4ba9-affd-c996c4facfa6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x710813e7375ecdb38b4b4a3c6aaef66abb2676b038f9fdc4ab1249a42d411b59","name":"Er Leccazizze","registered_at":"2026-06-16T19:41:40Z","symbol":"NIM1155427","token_address":"0xb9751c8c6d403bb5cc2a2896d70a046e823a52fb","type":"artist","uuid":"567ba6c8-a59b-4ba9-affd-c996c4facfa6"}
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 0x710813e7375ecdb38b4b4a3c6aaef66abb2676b038f9fdc4ab1249a42d411b59. 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/567ba6c8-a59b-4ba9-affd-c996c4facfa6.json and https://artists.proofprofile.net/proofs/artist/567ba6c8-a59b-4ba9-affd-c996c4facfa6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x710813e7375ecdb38b4b4a3c6aaef66abb2676b038f9fdc4ab1249a42d411b59","name":"Er Leccazizze","registered_at":"2026-06-16T19:41:40Z","symbol":"NIM1155427","token_address":"0xb9751c8c6d403bb5cc2a2896d70a046e823a52fb","type":"artist","uuid":"567ba6c8-a59b-4ba9-affd-c996c4facfa6"}