Ruth McDowall
type: MusicGroup
description: Ruth McDowall (born 1984) is a New Zealand photographer who has documented the evolving arms industry and growing violence in and around Jos in central Nigeria. In 2015, she published a photo story ba
popularity: 2
followers: 1
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x91f2729eb6021d68ab4571897f242e43edfe5bfa86edc3acbd3fd65f927f89cd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8dbee08f-9066-4cc9-a4ee-bab740e1c172.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8dbee08f-9066-4cc9-a4ee-bab740e1c172.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8dbee08f-9066-4cc9-a4ee-bab740e1c172
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x91f2729eb6021d68ab4571897f242e43edfe5bfa86edc3acbd3fd65f927f89cd","name":"Ruth McDowall","registered_at":"2026-06-17T15:05:23Z","symbol":"NIM1432941","token_address":"0x969f3ba467614b81bb8c706ad81b49b4fbc7b05f","type":"artist","uuid":"8dbee08f-9066-4cc9-a4ee-bab740e1c172"}
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 0x91f2729eb6021d68ab4571897f242e43edfe5bfa86edc3acbd3fd65f927f89cd. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8dbee08f-9066-4cc9-a4ee-bab740e1c172.json and https://artists.proofprofile.net/proofs/artist/8dbee08f-9066-4cc9-a4ee-bab740e1c172.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x91f2729eb6021d68ab4571897f242e43edfe5bfa86edc3acbd3fd65f927f89cd","name":"Ruth McDowall","registered_at":"2026-06-17T15:05:23Z","symbol":"NIM1432941","token_address":"0x969f3ba467614b81bb8c706ad81b49b4fbc7b05f","type":"artist","uuid":"8dbee08f-9066-4cc9-a4ee-bab740e1c172"}