Witchden
type: MusicGroup
genre: black metal
genre: sludge metal
popularity: 2
followers: 848
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9d0a606b460b762271f15ee92584f26fae8fe8d4099df2bfa12fceb987dfa36d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954705
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954705
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ec35f031-971f-4115-9b74-a5c4c3fb33a0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ec35f031-971f-4115-9b74-a5c4c3fb33a0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ec35f031-971f-4115-9b74-a5c4c3fb33a0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T13:42:37Z
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 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 0x9d0a606b460b762271f15ee92584f26fae8fe8d4099df2bfa12fceb987dfa36d. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ec35f031-971f-4115-9b74-a5c4c3fb33a0.json and https://artists.proofprofile.net/proofs/artist/ec35f031-971f-4115-9b74-a5c4c3fb33a0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T13:42:37Z
album: Consulting the Bones
  type: MusicAlbum
  date published: 2012-04-01
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  type: MusicAlbum
  date published: 2016-09-18
album: Deus Nihil
  type: MusicAlbum
  date published: 2019-10-31
album: Deus Nihil
  type: MusicAlbum
  date published: 2021-11-20
album: Renewal
  type: MusicAlbum
  date published: 2023-04-21
album: Ash Of The Ancients
  type: MusicAlbum
  date published: 2024-02-09
album: The Prisoner
  type: MusicAlbum
  date published: 2024-03-22