The Brothers Holk
type: MusicGroup
popularity: 4
followers: 400
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdbcb5bb7c6de92a1640f57fb5bf0456e9ce59d8c021598c152d0bc85cada56e1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954553
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954553
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/abb991e7-b49e-4e02-a5e3-67ed413ffde2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/abb991e7-b49e-4e02-a5e3-67ed413ffde2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/abb991e7-b49e-4e02-a5e3-67ed413ffde2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T11:51:30Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xdbcb5bb7c6de92a1640f57fb5bf0456e9ce59d8c021598c152d0bc85cada56e1","name":"The Brothers Holk","registered_at":"2026-06-20T10:00:45Z","symbol":"NIM1585928","token_address":"0xf68e8e1f1bf63d9b9bb3a37d06ba170fded345ae","type":"artist","uuid":"abb991e7-b49e-4e02-a5e3-67ed413ffde2"}
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 0xdbcb5bb7c6de92a1640f57fb5bf0456e9ce59d8c021598c152d0bc85cada56e1. Chain 2 (Bitcoin): anchored in block 954553 (2026-06-20T11:51:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/abb991e7-b49e-4e02-a5e3-67ed413ffde2.json and https://artists.proofprofile.net/proofs/artist/abb991e7-b49e-4e02-a5e3-67ed413ffde2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T11:51:30Z
  text: {"copyright_id":"0xdbcb5bb7c6de92a1640f57fb5bf0456e9ce59d8c021598c152d0bc85cada56e1","name":"The Brothers Holk","registered_at":"2026-06-20T10:00:45Z","symbol":"NIM1585928","token_address":"0xf68e8e1f1bf63d9b9bb3a37d06ba170fded345ae","type":"artist","uuid":"abb991e7-b49e-4e02-a5e3-67ed413ffde2"}
album: Riddle Me This
  type: MusicAlbum
  date published: 2019-07-12
album: When You're Not There
  type: MusicAlbum
  date published: 2019-09-13
album: Riddle Me This (Acoustic)
  type: MusicAlbum
  date published: 2020-04-03
album: Might As Well Dance
  type: MusicAlbum
  date published: 2020-10-23
album: Far From You
  type: MusicAlbum
  date published: 2021-01-01
album: Weight of the Weather
  type: MusicAlbum
  date published: 2021-02-19
album: Be Myself
  type: MusicAlbum
  date published: 2021-06-25
album: To Be Honest
  type: MusicAlbum
  date published: 2023-07-21
album: Ready
  type: MusicAlbum
  date published: 2023-08-18
album: Easily Broken
  type: MusicAlbum
  date published: 2023-09-08
album: Dragging On
  type: MusicAlbum
  date published: 2023-09-29
album: I Wish I Would've Known
  type: MusicAlbum
  date published: 2023-10-20
album: Repilot
  type: MusicAlbum
  date published: 2023-11-10