Black Masses
type: MusicGroup
description: Black Masses is the seventh studio album by English stoner/doom metal band Electric Wizard, released 1 November 2010. It is the band's only album to feature bassist Tas Danazoglou. Background left|th
popularity: 8
followers: 126
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7d64effc46612f86b1fb92bd7cf9fa027a7a506350a485f54b26da324a186040
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953867
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953867
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0604ad05-c31f-426c-8290-3365afda5d3b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0604ad05-c31f-426c-8290-3365afda5d3b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0604ad05-c31f-426c-8290-3365afda5d3b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T01:09:47Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7d64effc46612f86b1fb92bd7cf9fa027a7a506350a485f54b26da324a186040","name":"Black Masses","registered_at":"2026-06-15T15:43:18Z","symbol":"NIM0754865","token_address":"0x9cf80aedd7d961ae6f131d295a83def1537d8f3f","type":"artist","uuid":"0604ad05-c31f-426c-8290-3365afda5d3b"}
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 0x7d64effc46612f86b1fb92bd7cf9fa027a7a506350a485f54b26da324a186040. Chain 2 (Bitcoin): anchored in block 953877 (2026-06-16T02:39:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0604ad05-c31f-426c-8290-3365afda5d3b.json and https://artists.proofprofile.net/proofs/artist/0604ad05-c31f-426c-8290-3365afda5d3b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T02:39:16Z
  text: {"copyright_id":"0x7d64effc46612f86b1fb92bd7cf9fa027a7a506350a485f54b26da324a186040","name":"Black Masses","registered_at":"2026-06-15T15:43:18Z","symbol":"NIM0754865","token_address":"0x9cf80aedd7d961ae6f131d295a83def1537d8f3f","type":"artist","uuid":"0604ad05-c31f-426c-8290-3365afda5d3b"}
album: Wonderful Person
  type: MusicAlbum
  date published: 1998-12-04
album: My Heavenly Stars
  type: MusicAlbum
  date published: 2001-06-09