Houston Marchman & The Contraband
type: MusicGroup
genre: americana
genre: red dirt
genre: texas country
popularity: 7
followers: 805
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x909197da48ef62a9e640f3ec62c5f453a659e998a19f4f277dabed814f550e83
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fa464b02-d80e-4efc-acdf-629629a85488.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fa464b02-d80e-4efc-acdf-629629a85488.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fa464b02-d80e-4efc-acdf-629629a85488
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x909197da48ef62a9e640f3ec62c5f453a659e998a19f4f277dabed814f550e83","name":"Houston Marchman & The Contraband","registered_at":"2026-06-21T16:55:58Z","symbol":"NIM1978957","token_address":"0xbf2eddb297dd2fdc5a49898fa7ce0d54402d1f61","type":"artist","uuid":"fa464b02-d80e-4efc-acdf-629629a85488"}
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 0x909197da48ef62a9e640f3ec62c5f453a659e998a19f4f277dabed814f550e83. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fa464b02-d80e-4efc-acdf-629629a85488.json and https://artists.proofprofile.net/proofs/artist/fa464b02-d80e-4efc-acdf-629629a85488.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0x909197da48ef62a9e640f3ec62c5f453a659e998a19f4f277dabed814f550e83","name":"Houston Marchman & The Contraband","registered_at":"2026-06-21T16:55:58Z","symbol":"NIM1978957","token_address":"0xbf2eddb297dd2fdc5a49898fa7ce0d54402d1f61","type":"artist","uuid":"fa464b02-d80e-4efc-acdf-629629a85488"}
album: Leavin' Dallas
  type: MusicAlbum
  date published: 1999-03-30
album: Tryin' for Home
  type: MusicAlbum
  date published: 2000-11-07
album: Desperate Man
  type: MusicAlbum
  date published: 2003-03-11
album: Live!
  type: MusicAlbum
  date published: 2003-04-08