Case Mayfield
type: MusicGroup
genre: nederpop
genre: singer-songwriter
popularity: 6
followers: 2407
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6942a8e5c274c57f75835fa57f425e699878a7d6bcc9fe6581f03b7fd47149b7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954615
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954615
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c64f52c1-9576-4f90-b752-6c2c2bca2389.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c64f52c1-9576-4f90-b752-6c2c2bca2389.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c64f52c1-9576-4f90-b752-6c2c2bca2389
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T22:44:50Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6942a8e5c274c57f75835fa57f425e699878a7d6bcc9fe6581f03b7fd47149b7","name":"Case Mayfield","registered_at":"2026-06-20T21:21:24Z","symbol":"NIM1716769","token_address":"0xb4363a5e3150e9fa8b6a1b2a172bc2526cb42ecd","type":"artist","uuid":"c64f52c1-9576-4f90-b752-6c2c2bca2389"}
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 0x6942a8e5c274c57f75835fa57f425e699878a7d6bcc9fe6581f03b7fd47149b7. Chain 2 (Bitcoin): anchored in block 954615 (2026-06-20T22:44:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c64f52c1-9576-4f90-b752-6c2c2bca2389.json and https://artists.proofprofile.net/proofs/artist/c64f52c1-9576-4f90-b752-6c2c2bca2389.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T22:44:50Z
  text: {"copyright_id":"0x6942a8e5c274c57f75835fa57f425e699878a7d6bcc9fe6581f03b7fd47149b7","name":"Case Mayfield","registered_at":"2026-06-20T21:21:24Z","symbol":"NIM1716769","token_address":"0xb4363a5e3150e9fa8b6a1b2a172bc2526cb42ecd","type":"artist","uuid":"c64f52c1-9576-4f90-b752-6c2c2bca2389"}
album: Case Mayfield
  type: MusicAlbum
  date published: 2011-04-29
album: Case Mayfield
  type: MusicAlbum
  date published: 2011-04-29
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  type: MusicAlbum
  date published: 2012-01-20
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  type: MusicAlbum
  date published: 2012-02-17
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  type: MusicAlbum
  date published: 2012-09-14
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  date published: 2012-09-14
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  date published: 2012-10-09
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  date published: 2012-10-09
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  date published: 2014-03-26
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  date published: 2014-05-23
album: Another Glorious Battle for the Kingdom
  type: MusicAlbum
  date published: 2014-05-23
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  type: MusicAlbum
  date published: 2018-01-12
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  type: MusicAlbum
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