BIG PROBLEM MAC
type: MusicGroup
genre: drift phonk
genre: memphis rap
genre: phonk
popularity: 28
followers: 1017
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc2387ed01eb9d18bc00afd3bec5e333ae05b6faad98fab6d63b4d0a0384ab783
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/087e9f42-222f-4840-afd3-ef4c951aca9b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/087e9f42-222f-4840-afd3-ef4c951aca9b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/087e9f42-222f-4840-afd3-ef4c951aca9b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc2387ed01eb9d18bc00afd3bec5e333ae05b6faad98fab6d63b4d0a0384ab783","name":"BIG PROBLEM MAC","registered_at":"2026-06-11T11:20:06Z","symbol":"NIM0011895","token_address":"0xf4a8d7a9016ab362ab5eb518e7ec5468da346c8c","type":"artist","uuid":"087e9f42-222f-4840-afd3-ef4c951aca9b"}
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 0xc2387ed01eb9d18bc00afd3bec5e333ae05b6faad98fab6d63b4d0a0384ab783. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/087e9f42-222f-4840-afd3-ef4c951aca9b.json and https://artists.proofprofile.net/proofs/artist/087e9f42-222f-4840-afd3-ef4c951aca9b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0xc2387ed01eb9d18bc00afd3bec5e333ae05b6faad98fab6d63b4d0a0384ab783","name":"BIG PROBLEM MAC","registered_at":"2026-06-11T11:20:06Z","symbol":"NIM0011895","token_address":"0xf4a8d7a9016ab362ab5eb518e7ec5468da346c8c","type":"artist","uuid":"087e9f42-222f-4840-afd3-ef4c951aca9b"}
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  date published: 2021-02-04
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  date published: 2021-05-14
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  date published: 2022-05-01
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