Hollie Bar'ka
type: MusicGroup
popularity: 3
followers: 22
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5a2344b61f9682c4a4e0b0ebda1073bdd9c49d082db5ccade5bb7365c314c85c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954549
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954549
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a954de41-531c-44fe-88f0-1f0dae866a17.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a954de41-531c-44fe-88f0-1f0dae866a17.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a954de41-531c-44fe-88f0-1f0dae866a17
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T10:56:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5a2344b61f9682c4a4e0b0ebda1073bdd9c49d082db5ccade5bb7365c314c85c","name":"Hollie Bar'ka","registered_at":"2026-06-20T08:57:52Z","symbol":"NIM1571862","token_address":"0x9476949cb55dad9e16a1c3c3516ec43fdc15ae5f","type":"artist","uuid":"a954de41-531c-44fe-88f0-1f0dae866a17"}
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 0x5a2344b61f9682c4a4e0b0ebda1073bdd9c49d082db5ccade5bb7365c314c85c. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a954de41-531c-44fe-88f0-1f0dae866a17.json and https://artists.proofprofile.net/proofs/artist/a954de41-531c-44fe-88f0-1f0dae866a17.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T10:56:20Z
  text: {"copyright_id":"0x5a2344b61f9682c4a4e0b0ebda1073bdd9c49d082db5ccade5bb7365c314c85c","name":"Hollie Bar'ka","registered_at":"2026-06-20T08:57:52Z","symbol":"NIM1571862","token_address":"0x9476949cb55dad9e16a1c3c3516ec43fdc15ae5f","type":"artist","uuid":"a954de41-531c-44fe-88f0-1f0dae866a17"}
album: Naogopa
  type: MusicAlbum
  date published: 2020
album: Ntalikwepa
  type: MusicAlbum
  date published: 2020