Don Kay
type: MusicGroup
description: Don Kay may refer to: Don Kay (composer) (born 1933), Tasmanian composer Don Kay (politician) (died 2007), alderman on the Ottawa City Council See also Don Kaye (1938–1975), co-founder of Tactical S
popularity: 3
followers: 60
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x39b4c5ad6592f99a48e801deea2ddc01462bb0948f9314e5934d54257f22d510
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954603
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954603
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c0d9cb3f-bc9a-43a5-99ad-738a7fec37fc.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c0d9cb3f-bc9a-43a5-99ad-738a7fec37fc.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c0d9cb3f-bc9a-43a5-99ad-738a7fec37fc
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T21:47:54Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x39b4c5ad6592f99a48e801deea2ddc01462bb0948f9314e5934d54257f22d510","name":"Don Kay","registered_at":"2026-06-20T19:28:26Z","symbol":"NIM1690536","token_address":"0x0434aca0febc8a67fd82950e6b64ef75cc837bc8","type":"artist","uuid":"c0d9cb3f-bc9a-43a5-99ad-738a7fec37fc"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39b4c5ad6592f99a48e801deea2ddc01462bb0948f9314e5934d54257f22d510. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c0d9cb3f-bc9a-43a5-99ad-738a7fec37fc.json and https://artists.proofprofile.net/proofs/artist/c0d9cb3f-bc9a-43a5-99ad-738a7fec37fc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T21:47:54Z
  text: {"copyright_id":"0x39b4c5ad6592f99a48e801deea2ddc01462bb0948f9314e5934d54257f22d510","name":"Don Kay","registered_at":"2026-06-20T19:28:26Z","symbol":"NIM1690536","token_address":"0x0434aca0febc8a67fd82950e6b64ef75cc837bc8","type":"artist","uuid":"c0d9cb3f-bc9a-43a5-99ad-738a7fec37fc"}
album: There Is an Island
  type: MusicAlbum
  date published: 2006-01-06