Barbarian Swords
type: MusicGroup
genre: black metal
genre: doom metal
popularity: 3
followers: 1026
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2647d51fdc58eeba114c401d7b44203d46f38a02e680068a050146afd6794d7e
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/c461fdca-8c4e-4657-ad5c-520e4a5bf5e6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c461fdca-8c4e-4657-ad5c-520e4a5bf5e6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c461fdca-8c4e-4657-ad5c-520e4a5bf5e6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2647d51fdc58eeba114c401d7b44203d46f38a02e680068a050146afd6794d7e","name":"Barbarian Swords","registered_at":"2026-06-20T20:55:55Z","symbol":"NIM1711396","token_address":"0xb4045f8b058fe962e0a3756411efded7efd9e826","type":"artist","uuid":"c461fdca-8c4e-4657-ad5c-520e4a5bf5e6"}
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 0x2647d51fdc58eeba114c401d7b44203d46f38a02e680068a050146afd6794d7e. 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/c461fdca-8c4e-4657-ad5c-520e4a5bf5e6.json and https://artists.proofprofile.net/proofs/artist/c461fdca-8c4e-4657-ad5c-520e4a5bf5e6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x2647d51fdc58eeba114c401d7b44203d46f38a02e680068a050146afd6794d7e","name":"Barbarian Swords","registered_at":"2026-06-20T20:55:55Z","symbol":"NIM1711396","token_address":"0xb4045f8b058fe962e0a3756411efded7efd9e826","type":"artist","uuid":"c461fdca-8c4e-4657-ad5c-520e4a5bf5e6"}
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