Master C
type: MusicGroup
genre: chicago house
popularity: 12
followers: 66
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf2e549639b92026707702f6a3c4e02dc81f54e735c15fe328bc7b05b6ea59582
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953742
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953742
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/779bd4bd-36cb-4493-91cf-1c1e3eec690f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/779bd4bd-36cb-4493-91cf-1c1e3eec690f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/779bd4bd-36cb-4493-91cf-1c1e3eec690f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T04:47:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf2e549639b92026707702f6a3c4e02dc81f54e735c15fe328bc7b05b6ea59582","name":"Master C","registered_at":"2026-06-14T16:57:54Z","symbol":"NIM0517321","token_address":"0xd0fe6ab13482839339178c44548ca56dce2ce425","type":"artist","uuid":"779bd4bd-36cb-4493-91cf-1c1e3eec690f"}
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 0xf2e549639b92026707702f6a3c4e02dc81f54e735c15fe328bc7b05b6ea59582. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/779bd4bd-36cb-4493-91cf-1c1e3eec690f.json and https://artists.proofprofile.net/proofs/artist/779bd4bd-36cb-4493-91cf-1c1e3eec690f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T04:47:56Z
  text: {"copyright_id":"0xf2e549639b92026707702f6a3c4e02dc81f54e735c15fe328bc7b05b6ea59582","name":"Master C","registered_at":"2026-06-14T16:57:54Z","symbol":"NIM0517321","token_address":"0xd0fe6ab13482839339178c44548ca56dce2ce425","type":"artist","uuid":"779bd4bd-36cb-4493-91cf-1c1e3eec690f"}
album: Nelson Mandela Tribute
  type: MusicAlbum
  date published: 2013-12-31
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  type: MusicAlbum
  date published: 2021-10-29
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  type: MusicAlbum
  date published: 2021-10-29
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
  date published: 2025-03-22