Sara Allen
type: MusicGroup
description: Sara Allen (born March 23, 1954) is an American songwriter best known for her work with the duo Hall & Oates. Working as a flight attendant in the early 1970s, Allen was introduced to John Oates, who
popularity: 2
followers: 42
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xaf9187263aabbc380c3ca2a365591fdc472e7caffb9304629cf6ce7e1d0d3b19
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954650
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954650
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d9d7e2cb-f51e-477a-9d96-108f6abce21e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d9d7e2cb-f51e-477a-9d96-108f6abce21e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d9d7e2cb-f51e-477a-9d96-108f6abce21e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T04:51:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xaf9187263aabbc380c3ca2a365591fdc472e7caffb9304629cf6ce7e1d0d3b19","name":"Sara Allen","registered_at":"2026-06-21T04:11:18Z","symbol":"NIM1814709","token_address":"0x52eb8402ea71ea0481b3ed4672cc3e5571d3640a","type":"artist","uuid":"d9d7e2cb-f51e-477a-9d96-108f6abce21e"}
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 0xaf9187263aabbc380c3ca2a365591fdc472e7caffb9304629cf6ce7e1d0d3b19. Chain 2 (Bitcoin): anchored in block 954650 (2026-06-21T04:51:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d9d7e2cb-f51e-477a-9d96-108f6abce21e.json and https://artists.proofprofile.net/proofs/artist/d9d7e2cb-f51e-477a-9d96-108f6abce21e.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T04:51:12Z
  text: {"copyright_id":"0xaf9187263aabbc380c3ca2a365591fdc472e7caffb9304629cf6ce7e1d0d3b19","name":"Sara Allen","registered_at":"2026-06-21T04:11:18Z","symbol":"NIM1814709","token_address":"0x52eb8402ea71ea0481b3ed4672cc3e5571d3640a","type":"artist","uuid":"d9d7e2cb-f51e-477a-9d96-108f6abce21e"}