Eva Callaway
type: MusicGroup
popularity: 26
followers: 36
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb02d175cc8f584838f8de4d88541560232e0a8bf412be705f5e907ddadddcb85
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5f2cbe11-4c1d-4ff7-b3d5-5432c8719d02.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5f2cbe11-4c1d-4ff7-b3d5-5432c8719d02.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5f2cbe11-4c1d-4ff7-b3d5-5432c8719d02
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb02d175cc8f584838f8de4d88541560232e0a8bf412be705f5e907ddadddcb85","name":"Eva Callaway","registered_at":"2026-06-11T22:28:34Z","symbol":"NIM0123493","token_address":"0xeea4ac196f211853a22b3fb7ac743333c0a1fc1c","type":"artist","uuid":"5f2cbe11-4c1d-4ff7-b3d5-5432c8719d02"}
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 0xb02d175cc8f584838f8de4d88541560232e0a8bf412be705f5e907ddadddcb85. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5f2cbe11-4c1d-4ff7-b3d5-5432c8719d02.json and https://artists.proofprofile.net/proofs/artist/5f2cbe11-4c1d-4ff7-b3d5-5432c8719d02.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0xb02d175cc8f584838f8de4d88541560232e0a8bf412be705f5e907ddadddcb85","name":"Eva Callaway","registered_at":"2026-06-11T22:28:34Z","symbol":"NIM0123493","token_address":"0xeea4ac196f211853a22b3fb7ac743333c0a1fc1c","type":"artist","uuid":"5f2cbe11-4c1d-4ff7-b3d5-5432c8719d02"}