Helen Nash
type: MusicGroup
description: Helen Nash may refer to: Helen Elizabeth Nash (1921–2012), first African-American doctor at the Saint Louis Children's Hospital Helen Nash (cellist), cellist for the electric string quartet Escala
popularity: 8
followers: 80
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb4a58b047e2938c7d15531df7cf4665cdb959611aff8ffd2d3d0e000727df3de
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/55830d1e-e745-4ee7-aec8-41e381ffec4f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/55830d1e-e745-4ee7-aec8-41e381ffec4f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/55830d1e-e745-4ee7-aec8-41e381ffec4f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb4a58b047e2938c7d15531df7cf4665cdb959611aff8ffd2d3d0e000727df3de","name":"Helen Nash","registered_at":"2026-06-16T19:27:42Z","symbol":"NIM1152094","token_address":"0xde075c16b597bd9a0f8599d8d4f30b1820bab540","type":"artist","uuid":"55830d1e-e745-4ee7-aec8-41e381ffec4f"}
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 0xb4a58b047e2938c7d15531df7cf4665cdb959611aff8ffd2d3d0e000727df3de. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/55830d1e-e745-4ee7-aec8-41e381ffec4f.json and https://artists.proofprofile.net/proofs/artist/55830d1e-e745-4ee7-aec8-41e381ffec4f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0xb4a58b047e2938c7d15531df7cf4665cdb959611aff8ffd2d3d0e000727df3de","name":"Helen Nash","registered_at":"2026-06-16T19:27:42Z","symbol":"NIM1152094","token_address":"0xde075c16b597bd9a0f8599d8d4f30b1820bab540","type":"artist","uuid":"55830d1e-e745-4ee7-aec8-41e381ffec4f"}
album: Gangsta's Paradise (Pink Soldiers)
  type: MusicAlbum
  date published: 2022-04-22
album: Creation
  type: MusicAlbum
  date published: 2022-04-22
album: Destruction
  type: MusicAlbum
  date published: 2022-05-14