jacc
type: MusicGroup
genre: black metal
description: JACC may refer to: Java Acceleration system (the University of Manchester, James Clarkson et al) Journal of the American College of Cardiology, a cardiovascular journal Joyce Athletics & Convention
popularity: 4
followers: 591
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xde09e86136e913281b826b2cd5b96e9b8356dd1ebb88b2e0d4c3b819188c374e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954058
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954058
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4523b9b0-9d16-4436-ad80-6a35ca0a5dd1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4523b9b0-9d16-4436-ad80-6a35ca0a5dd1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4523b9b0-9d16-4436-ad80-6a35ca0a5dd1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T06:34:31Z
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 0xde09e86136e913281b826b2cd5b96e9b8356dd1ebb88b2e0d4c3b819188c374e. Chain 2 (Bitcoin): anchored in block 954058 (2026-06-17T06:34:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4523b9b0-9d16-4436-ad80-6a35ca0a5dd1.json and https://artists.proofprofile.net/proofs/artist/4523b9b0-9d16-4436-ad80-6a35ca0a5dd1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T06:34:31Z
album: casus fortuitus
  type: MusicAlbum
  date published: 2020-11-16
album: casus fortuitus (instrumental)
  type: MusicAlbum
  date published: 2020-11-16
album: rancorous anthropic excruciation (growled)
  type: MusicAlbum
  date published: 2021-09-01
album: rancorous anthropic excruciation (instrumental)
  type: MusicAlbum
  date published: 2021-09-08
album: rancorous anthropic excruciation (fryed)
  type: MusicAlbum
  date published: 2021-09-15
album: mors omnibus
  type: MusicAlbum
  date published: 2022-01-16
album: mors omnibus (instrumental)
  type: MusicAlbum
  date published: 2022-01-23
album: cathartic sorrow
  type: MusicAlbum
  date published: 2022-11-17
album: cathartic sorrow (instrumental)
  type: MusicAlbum
  date published: 2022-11-20
album: melancholic bliss
  type: MusicAlbum
  date published: 2022-12-03
album: melancholic bliss (instrumental)
  type: MusicAlbum
  date published: 2022-12-10