Spartan
type: MusicGroup
genre: death metal
genre: melodic death metal
genre: melodic metal
popularity: 7
followers: 3116
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x84b121e71d51731ebfd72225daf2207ed881e0b0cb981acf00fcebf67fe5a328
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/62ed19a8-efb1-48d7-b348-9af6a0750992.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/62ed19a8-efb1-48d7-b348-9af6a0750992.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/62ed19a8-efb1-48d7-b348-9af6a0750992
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
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 0x84b121e71d51731ebfd72225daf2207ed881e0b0cb981acf00fcebf67fe5a328. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/62ed19a8-efb1-48d7-b348-9af6a0750992.json and https://artists.proofprofile.net/proofs/artist/62ed19a8-efb1-48d7-b348-9af6a0750992.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
album: For Glory (Demo)
  type: MusicAlbum
  date published: 2009-12-18
album: The Fall of Olympus
  type: MusicAlbum
  date published: 2015-12-03
album: The Age of Man (Quarantine Studio Session) [Live]
  type: MusicAlbum
  date published: 2021-05-07
album: Prometheus
  type: MusicAlbum
  date published: 2021-11-23
album: Birth of a God (Alexander, Pt. 1)
  type: MusicAlbum
  date published: 2021-12-17
album: Of Kings and Gods
  type: MusicAlbum
  date published: 2022-01-14