Katharine McGee
type: MusicGroup
description: Katharine McGee is an American author. Her American Royals series was on the New York Times bestseller list in the Young Adults division. Education and career Katharine McGee graduated from Princet
popularity: 12
followers: 1
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb69cf59b5b5b065d8ac972e8bf83ddcc707c2e8fdef11fbc21d8303679eb5aab
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953750
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953750
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a8350b68-80b8-4a8a-bfec-9f220399c36e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a8350b68-80b8-4a8a-bfec-9f220399c36e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a8350b68-80b8-4a8a-bfec-9f220399c36e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T06:12:23Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb69cf59b5b5b065d8ac972e8bf83ddcc707c2e8fdef11fbc21d8303679eb5aab","name":"Katharine McGee","registered_at":"2026-06-14T22:13:51Z","symbol":"NIM0592639","token_address":"0xb5fcc70ec8e1f94b17946fb153b7ef99e10cfd7f","type":"artist","uuid":"a8350b68-80b8-4a8a-bfec-9f220399c36e"}
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 0xb69cf59b5b5b065d8ac972e8bf83ddcc707c2e8fdef11fbc21d8303679eb5aab. Chain 2 (Bitcoin): anchored in block 953750 (2026-06-15T06:12:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a8350b68-80b8-4a8a-bfec-9f220399c36e.json and https://artists.proofprofile.net/proofs/artist/a8350b68-80b8-4a8a-bfec-9f220399c36e.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-15T06:12:23Z
  text: {"copyright_id":"0xb69cf59b5b5b065d8ac972e8bf83ddcc707c2e8fdef11fbc21d8303679eb5aab","name":"Katharine McGee","registered_at":"2026-06-14T22:13:51Z","symbol":"NIM0592639","token_address":"0xb5fcc70ec8e1f94b17946fb153b7ef99e10cfd7f","type":"artist","uuid":"a8350b68-80b8-4a8a-bfec-9f220399c36e"}