Mark Fonseca
type: MusicGroup
genre: christian
popularity: 2
followers: 639
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd12ba1a866de18b793c6abed59a8ca23008e523f03a33f9d31d0d31b685d5ab2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bedf47ab-fa08-4101-bd43-3071c78ba3c7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bedf47ab-fa08-4101-bd43-3071c78ba3c7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bedf47ab-fa08-4101-bd43-3071c78ba3c7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd12ba1a866de18b793c6abed59a8ca23008e523f03a33f9d31d0d31b685d5ab2","name":"Mark Fonseca","registered_at":"2026-06-20T18:55:41Z","symbol":"NIM1684356","token_address":"0x9ae15945c68de8681b0c4f8f5348d2eba993ac25","type":"artist","uuid":"bedf47ab-fa08-4101-bd43-3071c78ba3c7"}
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 0xd12ba1a866de18b793c6abed59a8ca23008e523f03a33f9d31d0d31b685d5ab2. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bedf47ab-fa08-4101-bd43-3071c78ba3c7.json and https://artists.proofprofile.net/proofs/artist/bedf47ab-fa08-4101-bd43-3071c78ba3c7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xd12ba1a866de18b793c6abed59a8ca23008e523f03a33f9d31d0d31b685d5ab2","name":"Mark Fonseca","registered_at":"2026-06-20T18:55:41Z","symbol":"NIM1684356","token_address":"0x9ae15945c68de8681b0c4f8f5348d2eba993ac25","type":"artist","uuid":"bedf47ab-fa08-4101-bd43-3071c78ba3c7"}
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