Leandra Fili
type: MusicGroup
popularity: 6
followers: 67
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc212f3daa17aff763b52782e66e4ac90832130ab6cb1a25a85aad0cbbb6f798f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954085
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954085
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7acbf14a-0fb7-46b5-b73f-f7bcf36abe59.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7acbf14a-0fb7-46b5-b73f-f7bcf36abe59.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7acbf14a-0fb7-46b5-b73f-f7bcf36abe59
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T10:45:02Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc212f3daa17aff763b52782e66e4ac90832130ab6cb1a25a85aad0cbbb6f798f","name":"Leandra Fili","registered_at":"2026-06-17T08:24:09Z","symbol":"NIM1337323","token_address":"0x1f95c300ed80722932b8881a92af793b809a5b55","type":"artist","uuid":"7acbf14a-0fb7-46b5-b73f-f7bcf36abe59"}
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 0xc212f3daa17aff763b52782e66e4ac90832130ab6cb1a25a85aad0cbbb6f798f. Chain 2 (Bitcoin): anchored in block 954115 (2026-06-17T15:44:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7acbf14a-0fb7-46b5-b73f-f7bcf36abe59.json and https://artists.proofprofile.net/proofs/artist/7acbf14a-0fb7-46b5-b73f-f7bcf36abe59.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T15:44:10Z
  text: {"copyright_id":"0xc212f3daa17aff763b52782e66e4ac90832130ab6cb1a25a85aad0cbbb6f798f","name":"Leandra Fili","registered_at":"2026-06-17T08:24:09Z","symbol":"NIM1337323","token_address":"0x1f95c300ed80722932b8881a92af793b809a5b55","type":"artist","uuid":"7acbf14a-0fb7-46b5-b73f-f7bcf36abe59"}