Sarah Simpson
type: MusicGroup
description: Sarah Simpson ( – December 27, 1739) was a widow executed by hanging for the murder of her newborn child in the Province of New Hampshire.Women who kill She was one of the first two people to be execu
popularity: 30
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb5dca470d471e7f23c3cbbc7dc42e0e1062c088af4fb723fc0c3751e37d49fec
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/3b83f434-23a4-4ea1-8e8c-9b946c2acda2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3b83f434-23a4-4ea1-8e8c-9b946c2acda2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3b83f434-23a4-4ea1-8e8c-9b946c2acda2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb5dca470d471e7f23c3cbbc7dc42e0e1062c088af4fb723fc0c3751e37d49fec","name":"Sarah Simpson","registered_at":"2026-06-11T17:03:18Z","symbol":"NIM0076187","token_address":"0xa79c78bc1ef9dca5b8aaf917dcee46958e90b143","type":"artist","uuid":"3b83f434-23a4-4ea1-8e8c-9b946c2acda2"}
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 0xb5dca470d471e7f23c3cbbc7dc42e0e1062c088af4fb723fc0c3751e37d49fec. 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/3b83f434-23a4-4ea1-8e8c-9b946c2acda2.json and https://artists.proofprofile.net/proofs/artist/3b83f434-23a4-4ea1-8e8c-9b946c2acda2.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0xb5dca470d471e7f23c3cbbc7dc42e0e1062c088af4fb723fc0c3751e37d49fec","name":"Sarah Simpson","registered_at":"2026-06-11T17:03:18Z","symbol":"NIM0076187","token_address":"0xa79c78bc1ef9dca5b8aaf917dcee46958e90b143","type":"artist","uuid":"3b83f434-23a4-4ea1-8e8c-9b946c2acda2"}
album: Girl
  type: MusicAlbum
  date published: 2025-03-08