Bill Welsh
type: MusicGroup
description: Bill Welsh (April 25, 1911 – February 27, 2000) was an American radio and television announcer. Early years Welsh born in Greeley, Colorado, the son of Mr. and Mrs. W.H. Welsh. He attended the Color
popularity: 3
followers: 24
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9fdee9f18671f7f18dc29dca6e03367f7e3647ec98ea83a7b821cbd6a7df86ee
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954569
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954569
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b195efd7-59e1-4fd8-8822-fe39dfc63e1c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b195efd7-59e1-4fd8-8822-fe39dfc63e1c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b195efd7-59e1-4fd8-8822-fe39dfc63e1c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T14:36:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9fdee9f18671f7f18dc29dca6e03367f7e3647ec98ea83a7b821cbd6a7df86ee","name":"Bill Welsh","registered_at":"2026-06-20T12:27:46Z","symbol":"NIM1613386","token_address":"0xa4ebd9816e68bd92c5b1c4da564a63526395135c","type":"artist","uuid":"b195efd7-59e1-4fd8-8822-fe39dfc63e1c"}
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 0x9fdee9f18671f7f18dc29dca6e03367f7e3647ec98ea83a7b821cbd6a7df86ee. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b195efd7-59e1-4fd8-8822-fe39dfc63e1c.json and https://artists.proofprofile.net/proofs/artist/b195efd7-59e1-4fd8-8822-fe39dfc63e1c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T14:36:29Z
  text: {"copyright_id":"0x9fdee9f18671f7f18dc29dca6e03367f7e3647ec98ea83a7b821cbd6a7df86ee","name":"Bill Welsh","registered_at":"2026-06-20T12:27:46Z","symbol":"NIM1613386","token_address":"0xa4ebd9816e68bd92c5b1c4da564a63526395135c","type":"artist","uuid":"b195efd7-59e1-4fd8-8822-fe39dfc63e1c"}