Efren Fernand
type: MusicGroup
popularity: 2
followers: 84
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb016f1e5a401873f33b713a793e763f0717890a1595f1841d7467648ed4c3a9a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6e68251b-26ef-4fb7-8877-7113e1f632a3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6e68251b-26ef-4fb7-8877-7113e1f632a3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6e68251b-26ef-4fb7-8877-7113e1f632a3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb016f1e5a401873f33b713a793e763f0717890a1595f1841d7467648ed4c3a9a","name":"Efren Fernand","registered_at":"2026-06-17T04:07:08Z","symbol":"NIM1276038","token_address":"0x6ecbdd6b4605091e45e19871a862e145579ab948","type":"artist","uuid":"6e68251b-26ef-4fb7-8877-7113e1f632a3"}
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 0xb016f1e5a401873f33b713a793e763f0717890a1595f1841d7467648ed4c3a9a. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6e68251b-26ef-4fb7-8877-7113e1f632a3.json and https://artists.proofprofile.net/proofs/artist/6e68251b-26ef-4fb7-8877-7113e1f632a3.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xb016f1e5a401873f33b713a793e763f0717890a1595f1841d7467648ed4c3a9a","name":"Efren Fernand","registered_at":"2026-06-17T04:07:08Z","symbol":"NIM1276038","token_address":"0x6ecbdd6b4605091e45e19871a862e145579ab948","type":"artist","uuid":"6e68251b-26ef-4fb7-8877-7113e1f632a3"}
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