Mary O'Sullivan
type: MusicGroup
genre: celtic
description: Mary O'Sullivan may refer to: Mary Blanche O'Sullivan (1860–?), Canadian teacher, writer, and editor Mary Josephine Donovan O'Sullivan (1887–1966), Irish professor of history Mary Kenney O'Sullivan
popularity: 13
followers: 149
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd9d62bb345e7755706e3088f8e8de402a8a59f94b95d0781eed73488d8d9255b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953791
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953791
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ddb72b31-4290-4764-926a-f6fc77979aa9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ddb72b31-4290-4764-926a-f6fc77979aa9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ddb72b31-4290-4764-926a-f6fc77979aa9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T13:40:30Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd9d62bb345e7755706e3088f8e8de402a8a59f94b95d0781eed73488d8d9255b","name":"Mary O'Sullivan","registered_at":"2026-06-15T03:56:47Z","symbol":"NIM0674548","token_address":"0x0307694c9f95434731c80802793adbd709fb025e","type":"artist","uuid":"ddb72b31-4290-4764-926a-f6fc77979aa9"}
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 0xd9d62bb345e7755706e3088f8e8de402a8a59f94b95d0781eed73488d8d9255b. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ddb72b31-4290-4764-926a-f6fc77979aa9.json and https://artists.proofprofile.net/proofs/artist/ddb72b31-4290-4764-926a-f6fc77979aa9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T13:40:30Z
  text: {"copyright_id":"0xd9d62bb345e7755706e3088f8e8de402a8a59f94b95d0781eed73488d8d9255b","name":"Mary O'Sullivan","registered_at":"2026-06-15T03:56:47Z","symbol":"NIM0674548","token_address":"0x0307694c9f95434731c80802793adbd709fb025e","type":"artist","uuid":"ddb72b31-4290-4764-926a-f6fc77979aa9"}