Johnny Blowers
type: MusicGroup
description: 250px|thumb|Blowers not long before his death. John G. Blowers Jr. (April 21, 1911 – July 17, 2006) was an American drummer of the swing era. Born in Spartanburg, South Carolina, United States, Blower
popularity: 2
followers: 12
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x269aa445353cee8cf316e9ebaaa93a8ecad7783d719387da64c593169effffac
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/743c2037-b90a-47ca-b13e-10de9aed82e9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/743c2037-b90a-47ca-b13e-10de9aed82e9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/743c2037-b90a-47ca-b13e-10de9aed82e9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x269aa445353cee8cf316e9ebaaa93a8ecad7783d719387da64c593169effffac","name":"Johnny Blowers","registered_at":"2026-06-17T06:06:25Z","symbol":"NIM1304501","token_address":"0xf2158851e87fd2f7eaca8e1c18369b7b44fd3952","type":"artist","uuid":"743c2037-b90a-47ca-b13e-10de9aed82e9"}
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 0x269aa445353cee8cf316e9ebaaa93a8ecad7783d719387da64c593169effffac. 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/743c2037-b90a-47ca-b13e-10de9aed82e9.json and https://artists.proofprofile.net/proofs/artist/743c2037-b90a-47ca-b13e-10de9aed82e9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x269aa445353cee8cf316e9ebaaa93a8ecad7783d719387da64c593169effffac","name":"Johnny Blowers","registered_at":"2026-06-17T06:06:25Z","symbol":"NIM1304501","token_address":"0xf2158851e87fd2f7eaca8e1c18369b7b44fd3952","type":"artist","uuid":"743c2037-b90a-47ca-b13e-10de9aed82e9"}