Postmortem
type: MusicGroup
genre: death metal
genre: grindcore
genre: thrash metal
popularity: 3
followers: 1793
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xba2ad7264c73532b8981d34f541f64c0818827db23ff6e171bea000f82283889
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954638
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954638
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d3ef36b9-9ef2-41b8-923d-50eff3929225.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d3ef36b9-9ef2-41b8-923d-50eff3929225.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d3ef36b9-9ef2-41b8-923d-50eff3929225
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T03:45:44Z
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 0xba2ad7264c73532b8981d34f541f64c0818827db23ff6e171bea000f82283889. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d3ef36b9-9ef2-41b8-923d-50eff3929225.json and https://artists.proofprofile.net/proofs/artist/d3ef36b9-9ef2-41b8-923d-50eff3929225.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T03:45:44Z
album: Step Up Get Dropped Down
  type: MusicAlbum
  date published: 2005
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  type: MusicAlbum
  date published: 2008-11-01
album: Constant Hate
  type: MusicAlbum
  date published: 2009-03-27
album: Seeds of Devastation
  type: MusicAlbum
  date published: 2010-11-12
album: Seeds of Devastation
  type: MusicAlbum
  date published: 2010-12-10
album: Bloodground Messiah
  type: MusicAlbum
  date published: 2011-11-16
album: Bloodground Messiah
  type: MusicAlbum
  date published: 2012-12-07
album: The Bowls of Wrath
  type: MusicAlbum
  date published: 2014-01-01
album: The Bowls of Wrath
  type: MusicAlbum
  date published: 2014-11-21
album: Sepulcro Eterno
  type: MusicAlbum
  date published: 2016-04-22
album: Setara Dengannya
  type: MusicAlbum
  date published: 2023-09-03