Arthuros
type: MusicGroup
genre: dark ambient
popularity: 7
followers: 846
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x77a5b5d54024fe2de0775ffd406a740bf6d9c0ad6f8a48622811c4ade7f2c92e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c4799d66-2584-4931-b131-5bd8ec68d13f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c4799d66-2584-4931-b131-5bd8ec68d13f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c4799d66-2584-4931-b131-5bd8ec68d13f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
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 0x77a5b5d54024fe2de0775ffd406a740bf6d9c0ad6f8a48622811c4ade7f2c92e. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c4799d66-2584-4931-b131-5bd8ec68d13f.json and https://artists.proofprofile.net/proofs/artist/c4799d66-2584-4931-b131-5bd8ec68d13f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
album: Ithildin
  type: MusicAlbum
  date published: 2019-03-12
album: Ithildin
  type: MusicAlbum
  date published: 2019-03-12
album: Kosmos
  type: MusicAlbum
  date published: 2020-01-14
album: Kosmos
  type: MusicAlbum
  date published: 2020-01-14
album: From Stardust We Come
  type: MusicAlbum
  date published: 2020-03-02
album: Goddess
  type: MusicAlbum
  date published: 2021-01-15
album: Ultraromance
  type: MusicAlbum
  date published: 2022-05-15
album: Astral​á​e
  type: MusicAlbum
  date published: 2023-12-17
album: Travelstar
  type: MusicAlbum
  date published: 2025-03-01
album: Moonlight Lullaby
  type: MusicAlbum
  date published: 2025-10-01