Sarah Crossan
type: MusicGroup
description: Sarah Crossan is an Irish author. She is best known for her books for young adults, including Apple and Rain and One, for which she has won several awards. Life and career Crossan was born in London
popularity: 2
followers: 25
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdaaa6308d34380b6d4d5965b804e80574fe930fcb399adac24927db6ee6c1979
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953879
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953879
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/09717775-ae34-45c8-867b-87b9831f0239.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/09717775-ae34-45c8-867b-87b9831f0239.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/09717775-ae34-45c8-867b-87b9831f0239
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T02:57:35Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xdaaa6308d34380b6d4d5965b804e80574fe930fcb399adac24927db6ee6c1979","name":"Sarah Crossan","registered_at":"2026-06-15T16:48:39Z","symbol":"NIM0770461","token_address":"0x1895eb8ecba0a6e094b69b902b33ba9346759b75","type":"artist","uuid":"09717775-ae34-45c8-867b-87b9831f0239"}
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 0xdaaa6308d34380b6d4d5965b804e80574fe930fcb399adac24927db6ee6c1979. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/09717775-ae34-45c8-867b-87b9831f0239.json and https://artists.proofprofile.net/proofs/artist/09717775-ae34-45c8-867b-87b9831f0239.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:28:01Z
  text: {"copyright_id":"0xdaaa6308d34380b6d4d5965b804e80574fe930fcb399adac24927db6ee6c1979","name":"Sarah Crossan","registered_at":"2026-06-15T16:48:39Z","symbol":"NIM0770461","token_address":"0x1895eb8ecba0a6e094b69b902b33ba9346759b75","type":"artist","uuid":"09717775-ae34-45c8-867b-87b9831f0239"}
album: Toffee [Wie Glücklichsein von außen aussieht (Ungekürzte Lesung)]
  type: MusicAlbum
  date published: 2022-12-01