Earl Watkins
type: MusicGroup
genre: ragtime
genre: swing music
description: Earl Thomas Watkins, Jr. (January 29, 1920, in San Francisco – July 1, 2007, in San Francisco) was an American jazz drummer. Watkins was a percussionist in a United States Navy band during World War
popularity: 5
followers: 33
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6111d4aebd17273fe57b211904d8b5a0e9c30b350a0ca738a035037d67c234fc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b5c94cf6-c267-4c7f-b522-943c5d92cdc5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b5c94cf6-c267-4c7f-b522-943c5d92cdc5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b5c94cf6-c267-4c7f-b522-943c5d92cdc5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6111d4aebd17273fe57b211904d8b5a0e9c30b350a0ca738a035037d67c234fc","name":"Earl Watkins","registered_at":"2026-06-20T14:47:55Z","symbol":"NIM1633605","token_address":"0x6ee7df7e0a44094bbd381bc9fd39eb14d6e87f4d","type":"artist","uuid":"b5c94cf6-c267-4c7f-b522-943c5d92cdc5"}
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 0x6111d4aebd17273fe57b211904d8b5a0e9c30b350a0ca738a035037d67c234fc. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b5c94cf6-c267-4c7f-b522-943c5d92cdc5.json and https://artists.proofprofile.net/proofs/artist/b5c94cf6-c267-4c7f-b522-943c5d92cdc5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x6111d4aebd17273fe57b211904d8b5a0e9c30b350a0ca738a035037d67c234fc","name":"Earl Watkins","registered_at":"2026-06-20T14:47:55Z","symbol":"NIM1633605","token_address":"0x6ee7df7e0a44094bbd381bc9fd39eb14d6e87f4d","type":"artist","uuid":"b5c94cf6-c267-4c7f-b522-943c5d92cdc5"}