Cygnus
type: MusicGroup
popularity: 5
followers: 2471
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x98cfcdad247fa0e0620a4e44a741db4342d9292891d13f15237aa462b720133f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953930
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953930
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1e80e0f3-c599-44a9-8ef4-05e3a6970a50.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1e80e0f3-c599-44a9-8ef4-05e3a6970a50.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1e80e0f3-c599-44a9-8ef4-05e3a6970a50
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T10:36:13Z
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 0x98cfcdad247fa0e0620a4e44a741db4342d9292891d13f15237aa462b720133f. Chain 2 (Bitcoin): anchored in block 953930 (2026-06-16T10:36:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1e80e0f3-c599-44a9-8ef4-05e3a6970a50.json and https://artists.proofprofile.net/proofs/artist/1e80e0f3-c599-44a9-8ef4-05e3a6970a50.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T10:36:13Z
album: Skål
  type: MusicAlbum
  date published: 2018-08-29
album: Yggdrasil
  type: MusicAlbum
  date published: 2019-07-01
album: Fire and Tales
  type: MusicAlbum
  date published: 2020-03-08
album: Fire and Tales
  type: MusicAlbum
  date published: 2020-07-01
album: Yggdrasil
  type: MusicAlbum
  date published: 2021-05-01
album: Fire And Tales
  type: MusicAlbum
  date published: 2021-05-08
album: Ancient Visions
  type: MusicAlbum
  date published: 2021-06-29
album: Ancient Visions
  type: MusicAlbum
  date published: 2021-07-01
album: Death And Glory
  type: MusicAlbum
  date published: 2022-07-01
album: Death And Glory
  type: MusicAlbum
  date published: 2022-12-31
album: Revival
  type: MusicAlbum
  date published: 2023-11-27
album: Revival
  type: MusicAlbum
  date published: 2024-07-01
album: The Ballad of Sigurd the Brave and the First Accidental Zombie
  type: MusicAlbum
  date published: 2025-10-12