Hrom
type: MusicGroup
genre: power metal
genre: speed metal
genre: symphonic metal
popularity: 2
followers: 582
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x485184412c047eb4a8aa9c77d818f7315f2e32c183f70c1af2b065c87c2e49b6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954035
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954035
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3c2d5e6f-b894-46f3-b275-70f714a8ac6b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3c2d5e6f-b894-46f3-b275-70f714a8ac6b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3c2d5e6f-b894-46f3-b275-70f714a8ac6b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T02:39:28Z
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 0x485184412c047eb4a8aa9c77d818f7315f2e32c183f70c1af2b065c87c2e49b6. Chain 2 (Bitcoin): anchored in block 954035 (2026-06-17T02:39:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3c2d5e6f-b894-46f3-b275-70f714a8ac6b.json and https://artists.proofprofile.net/proofs/artist/3c2d5e6f-b894-46f3-b275-70f714a8ac6b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T02:39:28Z
album: Blesk
  type: MusicAlbum
  date published: 2009-08-31
album: Queen of Steel
  type: MusicAlbum
  date published: 2012-04-12
album: Legends of Powerheart, Pt. 1
  type: MusicAlbum
  date published: 2015-04-21
album: Trapped in the Past (Two-Track Single)
  type: MusicAlbum
  date published: 2018-06-24
album: Legends of Powerheart, Pt. 2
  type: MusicAlbum
  date published: 2020-09-25