Big Black
type: MusicGroup
description: Big Black was an American punk rock band from Evanston, Illinois, active from 1981 to 1987. Founded first as a solo project by singer and guitarist Steve Albini, the band became a trio with an initial
popularity: 19
followers: 206
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x87376e92244ad997be7830d620cbc871ad676597ec37f2e04492c4458c99609f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953791
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953791
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dfdd8fac-5a15-40c1-951f-19404e269264.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dfdd8fac-5a15-40c1-951f-19404e269264.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/dfdd8fac-5a15-40c1-951f-19404e269264
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T13:40:30Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x87376e92244ad997be7830d620cbc871ad676597ec37f2e04492c4458c99609f","name":"Big Black","registered_at":"2026-06-15T03:57:01Z","symbol":"NIM0674603","token_address":"0x27938c0db3cb121631725ac5ab7f0b9dabe600f1","type":"artist","uuid":"dfdd8fac-5a15-40c1-951f-19404e269264"}
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 0x87376e92244ad997be7830d620cbc871ad676597ec37f2e04492c4458c99609f. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dfdd8fac-5a15-40c1-951f-19404e269264.json and https://artists.proofprofile.net/proofs/artist/dfdd8fac-5a15-40c1-951f-19404e269264.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T13:40:30Z
  text: {"copyright_id":"0x87376e92244ad997be7830d620cbc871ad676597ec37f2e04492c4458c99609f","name":"Big Black","registered_at":"2026-06-15T03:57:01Z","symbol":"NIM0674603","token_address":"0x27938c0db3cb121631725ac5ab7f0b9dabe600f1","type":"artist","uuid":"dfdd8fac-5a15-40c1-951f-19404e269264"}
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  type: MusicAlbum
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