Chromium
type: MusicGroup
genre: groove metal
genre: melodic death metal
genre: metalcore
description: thumb|"Chrome plated" motorcycle parts, plated with a decorative layer of chromium Chromium is a chemical element; it has symbol Cr and atomic number 24. It is the first element in group 6. It is a
popularity: 7
followers: 665
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0b3d4216decb74968b6f238d8f95c44feb408464a38381c851927714e690fe3d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954631
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954631
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d144cb66-54e8-4a86-8d19-9110113fb971.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d144cb66-54e8-4a86-8d19-9110113fb971.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d144cb66-54e8-4a86-8d19-9110113fb971
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T02:46:24Z
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b3d4216decb74968b6f238d8f95c44feb408464a38381c851927714e690fe3d. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d144cb66-54e8-4a86-8d19-9110113fb971.json and https://artists.proofprofile.net/proofs/artist/d144cb66-54e8-4a86-8d19-9110113fb971.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T02:46:24Z
album: Intro Spectre
  type: MusicAlbum
  date published: 2006-08-02
album: Intro Spectre
  type: MusicAlbum
  date published: 2006-08-03
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  type: MusicAlbum
  date published: 2008-10-20
album: Confessions of a Hero
  type: MusicAlbum
  date published: 2008-11-17
album: Self Titled
  type: MusicAlbum
  date published: 2011-03-05
album: Chromium
  type: MusicAlbum
  date published: 2011-03-05
album: BloodLust
  type: MusicAlbum
  date published: 2013-04-30
album: Bloodlust
  type: MusicAlbum
  date published: 2013-04-30
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  type: MusicAlbum
  date published: 2025-02-17