Martha Fields
type: MusicGroup
genre: alt country
genre: americana
popularity: 4
followers: 346
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa45059e8f3a48c82e67d61ac409035b15433ebf752fd6cabbad3a24d97330466
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954027
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954027
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/39e7f411-2e2d-48a6-a6d3-1d0ff891aaa7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/39e7f411-2e2d-48a6-a6d3-1d0ff891aaa7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/39e7f411-2e2d-48a6-a6d3-1d0ff891aaa7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T00:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa45059e8f3a48c82e67d61ac409035b15433ebf752fd6cabbad3a24d97330466","name":"Martha Fields","registered_at":"2026-06-16T09:44:08Z","symbol":"NIM1012868","token_address":"0x9cf5f96b717a5dc59a2985b8e841cee4f2c7f1a9","type":"artist","uuid":"39e7f411-2e2d-48a6-a6d3-1d0ff891aaa7"}
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 0xa45059e8f3a48c82e67d61ac409035b15433ebf752fd6cabbad3a24d97330466. Chain 2 (Bitcoin): anchored in block 954027 (2026-06-17T00:55:08Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/39e7f411-2e2d-48a6-a6d3-1d0ff891aaa7.json and https://artists.proofprofile.net/proofs/artist/39e7f411-2e2d-48a6-a6d3-1d0ff891aaa7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T00:55:08Z
  text: {"copyright_id":"0xa45059e8f3a48c82e67d61ac409035b15433ebf752fd6cabbad3a24d97330466","name":"Martha Fields","registered_at":"2026-06-16T09:44:08Z","symbol":"NIM1012868","token_address":"0x9cf5f96b717a5dc59a2985b8e841cee4f2c7f1a9","type":"artist","uuid":"39e7f411-2e2d-48a6-a6d3-1d0ff891aaa7"}
album: Southern White Lies
  type: MusicAlbum
  date published: 2016-07-13
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  type: MusicAlbum
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