Black on Black
type: MusicGroup
genre: cold wave
genre: darkwave
genre: post-punk
description: Black on Black is the twenty-eighth studio album by American country music artist Waylon Jennings, released on RCA Victor in 1982. Background By 1981, Jennings' excessive lifestyle had caught up to h
popularity: 2
followers: 346
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1375dc479b47ff9a499ffef87312ed7898d66a140fc3c13d19234f2faf1a2883
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9990c60f-b153-4702-a506-284bb18a8e2a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9990c60f-b153-4702-a506-284bb18a8e2a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9990c60f-b153-4702-a506-284bb18a8e2a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1375dc479b47ff9a499ffef87312ed7898d66a140fc3c13d19234f2faf1a2883","name":"Black on Black","registered_at":"2026-06-17T19:16:27Z","symbol":"NIM1492886","token_address":"0x31ce8593a411715457fd2450a840ec13d3b040c3","type":"artist","uuid":"9990c60f-b153-4702-a506-284bb18a8e2a"}
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 0x1375dc479b47ff9a499ffef87312ed7898d66a140fc3c13d19234f2faf1a2883. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9990c60f-b153-4702-a506-284bb18a8e2a.json and https://artists.proofprofile.net/proofs/artist/9990c60f-b153-4702-a506-284bb18a8e2a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0x1375dc479b47ff9a499ffef87312ed7898d66a140fc3c13d19234f2faf1a2883","name":"Black on Black","registered_at":"2026-06-17T19:16:27Z","symbol":"NIM1492886","token_address":"0x31ce8593a411715457fd2450a840ec13d3b040c3","type":"artist","uuid":"9990c60f-b153-4702-a506-284bb18a8e2a"}
album: Black on Black
  type: MusicAlbum
  date published: 2019-11-07
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