Barbara Gaskin
type: MusicGroup
description: Barbara Gaskin (born 5 June 1950) is an English singer formerly associated with the UK Canterbury scene. Gaskin was lead vocalist in British folk-prog band Spirogyra (1969–1974). From 1973 to 1976, s
popularity: 15
followers: 200
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa97fc6194143167187edfc152224a0580c0f819e15cc9e2e66a82559ff6ff568
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953819
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953819
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f850ab99-1e0a-4a91-896a-2dc964b35e4e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f850ab99-1e0a-4a91-896a-2dc964b35e4e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f850ab99-1e0a-4a91-896a-2dc964b35e4e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T18:31:52Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa97fc6194143167187edfc152224a0580c0f819e15cc9e2e66a82559ff6ff568","name":"Barbara Gaskin","registered_at":"2026-06-15T06:34:07Z","symbol":"NIM0712107","token_address":"0x26ce2b1e9dd4a10722dbf031eb625439c51a0780","type":"artist","uuid":"f850ab99-1e0a-4a91-896a-2dc964b35e4e"}
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 0xa97fc6194143167187edfc152224a0580c0f819e15cc9e2e66a82559ff6ff568. Chain 2 (Bitcoin): anchored in block 953819 (2026-06-15T18:31:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f850ab99-1e0a-4a91-896a-2dc964b35e4e.json and https://artists.proofprofile.net/proofs/artist/f850ab99-1e0a-4a91-896a-2dc964b35e4e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T18:31:52Z
  text: {"copyright_id":"0xa97fc6194143167187edfc152224a0580c0f819e15cc9e2e66a82559ff6ff568","name":"Barbara Gaskin","registered_at":"2026-06-15T06:34:07Z","symbol":"NIM0712107","token_address":"0x26ce2b1e9dd4a10722dbf031eb625439c51a0780","type":"artist","uuid":"f850ab99-1e0a-4a91-896a-2dc964b35e4e"}