Dr. Helander & Third Ward
type: MusicGroup
genre: blues
genre: blues rock
popularity: 2
followers: 186
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x45576f126c1d3f28814651ee7329171b2734e2971c77e2070b961d6c5d777473
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d5d2813a-7a91-4902-8928-ce178acc2710.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d5d2813a-7a91-4902-8928-ce178acc2710.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d5d2813a-7a91-4902-8928-ce178acc2710
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x45576f126c1d3f28814651ee7329171b2734e2971c77e2070b961d6c5d777473","name":"Dr. Helander & Third Ward","registered_at":"2026-06-21T02:37:38Z","symbol":"NIM1793871","token_address":"0x9abe619d1438629c3bd481f9e0d8aa5c4e5f8983","type":"artist","uuid":"d5d2813a-7a91-4902-8928-ce178acc2710"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45576f126c1d3f28814651ee7329171b2734e2971c77e2070b961d6c5d777473. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d5d2813a-7a91-4902-8928-ce178acc2710.json and https://artists.proofprofile.net/proofs/artist/d5d2813a-7a91-4902-8928-ce178acc2710.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x45576f126c1d3f28814651ee7329171b2734e2971c77e2070b961d6c5d777473","name":"Dr. Helander & Third Ward","registered_at":"2026-06-21T02:37:38Z","symbol":"NIM1793871","token_address":"0x9abe619d1438629c3bd481f9e0d8aa5c4e5f8983","type":"artist","uuid":"d5d2813a-7a91-4902-8928-ce178acc2710"}
album: Meat Grindin' Business
  type: MusicAlbum
  date published: 2018-07-06
album: Traffic Jam on the Back Street
  type: MusicAlbum
  date published: 2020-08-28
album: Shining Pearls
  type: MusicAlbum
  date published: 2023-01-27