BackTalk
type: MusicGroup
genre: metalcore
popularity: 3
followers: 541
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf021b285e6ec7c918886ab8e6232116d88c993831da95e8892b4f975b59f8b45
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954587
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954587
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b9c36a8e-d8b1-4f3e-9d98-f6cfb100f93e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b9c36a8e-d8b1-4f3e-9d98-f6cfb100f93e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b9c36a8e-d8b1-4f3e-9d98-f6cfb100f93e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T19:10:41Z
additional property: OTSCanonicalRecord
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 0xf021b285e6ec7c918886ab8e6232116d88c993831da95e8892b4f975b59f8b45. Chain 2 (Bitcoin): anchored in block 954587 (2026-06-20T19:10:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b9c36a8e-d8b1-4f3e-9d98-f6cfb100f93e.json and https://artists.proofprofile.net/proofs/artist/b9c36a8e-d8b1-4f3e-9d98-f6cfb100f93e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T19:10:41Z
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  type: MusicAlbum
  date published: 2017-04-24
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  type: MusicAlbum
  date published: 2018-09-30
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  type: MusicAlbum
  date published: 2020-08-28
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  type: MusicAlbum
  date published: 2021-01-12
album: Unsought
  type: MusicAlbum
  date published: 2021-08-31
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  type: MusicAlbum
  date published: 2022-02-15
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  type: MusicAlbum
  date published: 2024-01-09
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  type: MusicAlbum
  date published: 2024-09-17