Audrey Evans
type: MusicGroup
description: Audrey Elizabeth Evans (6 March 1925 – 29 September 2022) was a British-born American pediatric oncologist who was known as the "Mother of Neuroblastoma." She was one of the co-founders of the origina
popularity: 5
followers: 29
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa189d7a87d1f097acc6c0d120bbffb87cd57c80ebf717cd4bbe36faa58885902
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954014
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954014
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/34834e57-56e1-4397-a653-ab06ff32ab10.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/34834e57-56e1-4397-a653-ab06ff32ab10.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/34834e57-56e1-4397-a653-ab06ff32ab10
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T22:46:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa189d7a87d1f097acc6c0d120bbffb87cd57c80ebf717cd4bbe36faa58885902","name":"Audrey Evans","registered_at":"2026-06-16T07:47:58Z","symbol":"NIM0985145","token_address":"0x41394947fa52b27c302e01bf44024791f8e6c4b6","type":"artist","uuid":"34834e57-56e1-4397-a653-ab06ff32ab10"}
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 0xa189d7a87d1f097acc6c0d120bbffb87cd57c80ebf717cd4bbe36faa58885902. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/34834e57-56e1-4397-a653-ab06ff32ab10.json and https://artists.proofprofile.net/proofs/artist/34834e57-56e1-4397-a653-ab06ff32ab10.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T22:46:20Z
  text: {"copyright_id":"0xa189d7a87d1f097acc6c0d120bbffb87cd57c80ebf717cd4bbe36faa58885902","name":"Audrey Evans","registered_at":"2026-06-16T07:47:58Z","symbol":"NIM0985145","token_address":"0x41394947fa52b27c302e01bf44024791f8e6c4b6","type":"artist","uuid":"34834e57-56e1-4397-a653-ab06ff32ab10"}