Kathryn Grayson
type: MusicGroup
description: Kathryn Grayson (born Zelma Kathryn Elisabeth Hedrick; February 9, 1922 – February 17, 2010) was an American actress and coloratura soprano. From the age of 12, Grayson trained as an opera singer. Sh
popularity: 9
followers: 237
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x07bc0f17f2349cfe8d232da2fac56d9b3eb574c2ed71ed18f522d9f1704d468f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954516
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954516
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a200331e-36ea-4938-8768-3391a7a2fc19.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a200331e-36ea-4938-8768-3391a7a2fc19.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a200331e-36ea-4938-8768-3391a7a2fc19
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T07:04:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x07bc0f17f2349cfe8d232da2fac56d9b3eb574c2ed71ed18f522d9f1704d468f","name":"Kathryn Grayson","registered_at":"2026-06-20T06:11:30Z","symbol":"NIM1535738","token_address":"0x6fb1a079e81745b636218de289e6d8e1b1a3883f","type":"artist","uuid":"a200331e-36ea-4938-8768-3391a7a2fc19"}
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 0x07bc0f17f2349cfe8d232da2fac56d9b3eb574c2ed71ed18f522d9f1704d468f. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a200331e-36ea-4938-8768-3391a7a2fc19.json and https://artists.proofprofile.net/proofs/artist/a200331e-36ea-4938-8768-3391a7a2fc19.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T07:04:44Z
  text: {"copyright_id":"0x07bc0f17f2349cfe8d232da2fac56d9b3eb574c2ed71ed18f522d9f1704d468f","name":"Kathryn Grayson","registered_at":"2026-06-20T06:11:30Z","symbol":"NIM1535738","token_address":"0x6fb1a079e81745b636218de289e6d8e1b1a3883f","type":"artist","uuid":"a200331e-36ea-4938-8768-3391a7a2fc19"}
album: Be My Love
  type: MusicAlbum
  date published: 2008
album: The Very Best Of
  type: MusicAlbum
  date published: 2009-01-01
album: The Very Best Of
  type: MusicAlbum
  date published: 2009-07-01
album: So This Is Love
  type: MusicAlbum
  date published: 2010-05-07
album: Stranger in Paradise
  type: MusicAlbum
  date published: 2010-12-24
album: Kathryn Grayson Sings
  type: MusicAlbum
  date published: 2011-01-06
album: Kiss Me Kate (Original Motion Picture Soundtrack Compilation)
  type: MusicAlbum
  date published: 2013-10-08