Nydvind
type: MusicGroup
genre: black metal
genre: folk metal
genre: medieval metal
popularity: 4
followers: 689
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf1447990da5181c53506572f0f740a487b9262abf6e91994a8ac632267517fbb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954728
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954728
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fb195aff-b1e9-45e8-b4fb-fab90b3d75ae.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fb195aff-b1e9-45e8-b4fb-fab90b3d75ae.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fb195aff-b1e9-45e8-b4fb-fab90b3d75ae
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T18:08:38Z
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 0xf1447990da5181c53506572f0f740a487b9262abf6e91994a8ac632267517fbb. Chain 2 (Bitcoin): anchored in block 954729 (2026-06-21T18:16:07Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fb195aff-b1e9-45e8-b4fb-fab90b3d75ae.json and https://artists.proofprofile.net/proofs/artist/fb195aff-b1e9-45e8-b4fb-fab90b3d75ae.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T18:16:07Z
album: Eternal Winter Domain
  type: MusicAlbum
  date published: 2003-09-23
album: Sworn to the Elders
  type: MusicAlbum
  date published: 2010-01-29
album: Seas of Oblivion - Tetramental I
  type: MusicAlbum
  date published: 2018-01-18
album: Thanetian Sublimity
  type: MusicAlbum
  date published: 2025-02-10
album: Heart of the Woods , Pt.2
  type: MusicAlbum
  date published: 2025-03-07
album: Telluria - Tetramental II
  type: MusicAlbum
  date published: 2025-03-21