DJ KAY SLAY
type: MusicGroup
description: Keith Grayson (August 14, 1965 – April 17, 2022), known professionally as DJ Kay Slay, was an American disc jockey (DJ) from Manhattan, New York. He is referred to by The New York Times as "Hip Hop's
popularity: 4
followers: 32
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf59263e9493ad58c712c63ba4c3894b245fb5ea78c7835736e7dc6371114732d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6722ba2e-acf8-4318-92a0-f3467a1c258b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6722ba2e-acf8-4318-92a0-f3467a1c258b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6722ba2e-acf8-4318-92a0-f3467a1c258b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf59263e9493ad58c712c63ba4c3894b245fb5ea78c7835736e7dc6371114732d","name":"DJ KAY SLAY","registered_at":"2026-06-17T01:35:00Z","symbol":"NIM1239729","token_address":"0x915d98485b5c1b12ce2a9f163e28106768a57f75","type":"artist","uuid":"6722ba2e-acf8-4318-92a0-f3467a1c258b"}
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 0xf59263e9493ad58c712c63ba4c3894b245fb5ea78c7835736e7dc6371114732d. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6722ba2e-acf8-4318-92a0-f3467a1c258b.json and https://artists.proofprofile.net/proofs/artist/6722ba2e-acf8-4318-92a0-f3467a1c258b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xf59263e9493ad58c712c63ba4c3894b245fb5ea78c7835736e7dc6371114732d","name":"DJ KAY SLAY","registered_at":"2026-06-17T01:35:00Z","symbol":"NIM1239729","token_address":"0x915d98485b5c1b12ce2a9f163e28106768a57f75","type":"artist","uuid":"6722ba2e-acf8-4318-92a0-f3467a1c258b"}