Erin O'Callaghan
type: MusicGroup
popularity: 2
followers: 207
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc8a732cc7a779aebbbfb748568690c45679c35950976ba9af1b097b648a96387
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/af749b47-f6bc-4ceb-9002-69e4efee50b1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/af749b47-f6bc-4ceb-9002-69e4efee50b1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/af749b47-f6bc-4ceb-9002-69e4efee50b1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc8a732cc7a779aebbbfb748568690c45679c35950976ba9af1b097b648a96387","name":"Erin O'Callaghan","registered_at":"2026-06-20T11:47:40Z","symbol":"NIM1604354","token_address":"0x4387421d434d3e538559f43f4b574339f6894873","type":"artist","uuid":"af749b47-f6bc-4ceb-9002-69e4efee50b1"}
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 0xc8a732cc7a779aebbbfb748568690c45679c35950976ba9af1b097b648a96387. 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/af749b47-f6bc-4ceb-9002-69e4efee50b1.json and https://artists.proofprofile.net/proofs/artist/af749b47-f6bc-4ceb-9002-69e4efee50b1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xc8a732cc7a779aebbbfb748568690c45679c35950976ba9af1b097b648a96387","name":"Erin O'Callaghan","registered_at":"2026-06-20T11:47:40Z","symbol":"NIM1604354","token_address":"0x4387421d434d3e538559f43f4b574339f6894873","type":"artist","uuid":"af749b47-f6bc-4ceb-9002-69e4efee50b1"}
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  type: MusicAlbum
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  type: MusicAlbum
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