Blacklab
type: MusicGroup
genre: doom metal
genre: sludge metal
genre: stoner rock
popularity: 4
followers: 2129
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfbb66239551681e42d7a91cf245f9773b9f6b770281510ea78fde3038f8c9e9a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/81aea3b6-5168-467f-a005-b330a6a583a0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/81aea3b6-5168-467f-a005-b330a6a583a0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/81aea3b6-5168-467f-a005-b330a6a583a0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
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 0xfbb66239551681e42d7a91cf245f9773b9f6b770281510ea78fde3038f8c9e9a. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/81aea3b6-5168-467f-a005-b330a6a583a0.json and https://artists.proofprofile.net/proofs/artist/81aea3b6-5168-467f-a005-b330a6a583a0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
album: Black Moon
  type: MusicAlbum
  date published: 2018-05-30
album: Under The Strawberry Moon 2.0
  type: MusicAlbum
  date published: 2018-07-20
album: Insanity
  type: MusicAlbum
  date published: 2020-02-14
album: Forked Road
  type: MusicAlbum
  date published: 2020-05-01
album: Abyss
  type: MusicAlbum
  date published: 2020-05-08
album: Abyss Woods
  type: MusicAlbum
  date published: 2022-04-27
album: Crows, Sparrows and Cats
  type: MusicAlbum
  date published: 2022-07-14
album: Dark Clouds
  type: MusicAlbum
  date published: 2022-07-14
album: In A Bizarre Dream
  type: MusicAlbum
  date published: 2022-08-19
album: Evil Worlds
  type: MusicAlbum
  date published: 2024-03-20