Mary Ellen
type: MusicGroup
description: Mary Ellen is a given name. Notable people with the name include: Mary Ellen Duncan (1941–2022), American academic administrator and teacher Mary Ellen Mark (1940–2015), American photographer Mary
popularity: 7
followers: 4
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5ac2994e8f0a9972e3878f4097db98dd7c94a808fbaa919b91e084fac09515a0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953875
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953875
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0802a6ed-d182-4995-af5c-6ece2d160de7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0802a6ed-d182-4995-af5c-6ece2d160de7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0802a6ed-d182-4995-af5c-6ece2d160de7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T02:12:46Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5ac2994e8f0a9972e3878f4097db98dd7c94a808fbaa919b91e084fac09515a0","name":"Mary Ellen","registered_at":"2026-06-15T16:16:25Z","symbol":"NIM0762768","token_address":"0x5d2a0223ecaf7b154c2b502b8b730f63c6dc7991","type":"artist","uuid":"0802a6ed-d182-4995-af5c-6ece2d160de7"}
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 0x5ac2994e8f0a9972e3878f4097db98dd7c94a808fbaa919b91e084fac09515a0. Chain 2 (Bitcoin): anchored in block 953875 (2026-06-16T02:12:46Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0802a6ed-d182-4995-af5c-6ece2d160de7.json and https://artists.proofprofile.net/proofs/artist/0802a6ed-d182-4995-af5c-6ece2d160de7.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T02:12:46Z
  text: {"copyright_id":"0x5ac2994e8f0a9972e3878f4097db98dd7c94a808fbaa919b91e084fac09515a0","name":"Mary Ellen","registered_at":"2026-06-15T16:16:25Z","symbol":"NIM0762768","token_address":"0x5d2a0223ecaf7b154c2b502b8b730f63c6dc7991","type":"artist","uuid":"0802a6ed-d182-4995-af5c-6ece2d160de7"}