hfdbk
type: MusicGroup
genre: witch house
popularity: 2
followers: 53
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6e52575d5b2213ea591536f0a038390512ebbea93208a131deceed5edd384b9f
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/f90ff8b4-fef7-4228-a01a-a98a06a59f02.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f90ff8b4-fef7-4228-a01a-a98a06a59f02.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f90ff8b4-fef7-4228-a01a-a98a06a59f02
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
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 0x6e52575d5b2213ea591536f0a038390512ebbea93208a131deceed5edd384b9f. 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/f90ff8b4-fef7-4228-a01a-a98a06a59f02.json and https://artists.proofprofile.net/proofs/artist/f90ff8b4-fef7-4228-a01a-a98a06a59f02.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
album: Out the Grave
  type: MusicAlbum
  date published: 2020-11-01
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  type: MusicAlbum
  date published: 2021-04-30
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  type: MusicAlbum
  date published: 2021-07-01
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  type: MusicAlbum
  date published: 2021-07-01
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  type: MusicAlbum
  date published: 2021-09-01
album: Rain
  type: MusicAlbum
  date published: 2021-11-24
album: FALL IN LOVE
  type: MusicAlbum
  date published: 2022-01-01
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  type: MusicAlbum
  date published: 2022-05-08
album: Snow
  type: MusicAlbum
  date published: 2022-12-07
album: ZENTORNO
  type: MusicAlbum
  date published: 2023-01-13
album: REBORN
  type: MusicAlbum
  date published: 2023-07-07