Black Top
type: MusicGroup
genre: blues rock
popularity: 2
followers: 264
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe4f219926364d0a74fca07c74e71a81aa13ce1c47b1e3a701065fbe3218404f1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954603
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954603
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bfffac85-8dc9-4163-858e-e6578545f800.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bfffac85-8dc9-4163-858e-e6578545f800.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bfffac85-8dc9-4163-858e-e6578545f800
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T21:47:54Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe4f219926364d0a74fca07c74e71a81aa13ce1c47b1e3a701065fbe3218404f1","name":"Black Top","registered_at":"2026-06-20T18:57:39Z","symbol":"NIM1685266","token_address":"0xb30b63d09ebfcc3769a16c71719e58bdbc9545ac","type":"artist","uuid":"bfffac85-8dc9-4163-858e-e6578545f800"}
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 0xe4f219926364d0a74fca07c74e71a81aa13ce1c47b1e3a701065fbe3218404f1. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bfffac85-8dc9-4163-858e-e6578545f800.json and https://artists.proofprofile.net/proofs/artist/bfffac85-8dc9-4163-858e-e6578545f800.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T21:47:54Z
  text: {"copyright_id":"0xe4f219926364d0a74fca07c74e71a81aa13ce1c47b1e3a701065fbe3218404f1","name":"Black Top","registered_at":"2026-06-20T18:57:39Z","symbol":"NIM1685266","token_address":"0xb30b63d09ebfcc3769a16c71719e58bdbc9545ac","type":"artist","uuid":"bfffac85-8dc9-4163-858e-e6578545f800"}
album: Rough 'N Gritty
  type: MusicAlbum
  date published: 2009-04-21
album: Sour Milk
  type: MusicAlbum
  date published: 2011-04-25
album: Sour Milk
  type: MusicAlbum
  date published: 2011-04-25
album: Pay My Dues
  type: MusicAlbum
  date published: 2015-11-02
album: Pay My Dues
  type: MusicAlbum
  date published: 2015-11-02
album: Cherry Picking
  type: MusicAlbum
  date published: 2016-12-16