Kathreptis
type: MusicGroup
popularity: 3
followers: 571
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc2872b8368239ececab72eb02696255892793e828ac12dda05c097383272e8f6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953879
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953879
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/09f82fa2-d064-41e9-90f8-c91f433f8ea8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/09f82fa2-d064-41e9-90f8-c91f433f8ea8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/09f82fa2-d064-41e9-90f8-c91f433f8ea8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T02:57:35Z
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 0xc2872b8368239ececab72eb02696255892793e828ac12dda05c097383272e8f6. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/09f82fa2-d064-41e9-90f8-c91f433f8ea8.json and https://artists.proofprofile.net/proofs/artist/09f82fa2-d064-41e9-90f8-c91f433f8ea8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
album: Lo Menos Peor (Re-grabado)
  type: MusicAlbum
  date published: 2020-03-23
album: Third Demo
  type: MusicAlbum
  date published: 2020-05-18
album: Live at Norrea Lake
  type: MusicAlbum
  date published: 2020-11-30
album: Live at Norrea Lake
  type: MusicAlbum
  date published: 2021-03-02
album: Lo Menos Peor (Re-Grabado)
  type: MusicAlbum
  date published: 2021-03-15
album: Dead By Blade
  type: MusicAlbum
  date published: 2021-03-26
album: Dead By Blade
  type: MusicAlbum
  date published: 2021-04-24
album: Chulin
  type: MusicAlbum
  date published: 2021-12-06
album: 3 Way Split (tracks kathrepticos)
  type: MusicAlbum
  date published: 2024-06-21
album: Minutos
  type: MusicAlbum
  date published: 2024-10-25
album: MMM
  type: MusicAlbum
  date published: 2025-10-10