Bob Havens
type: MusicGroup
description: Robert Havens (born May 3, 1930) is an American big band and jazz musician who appeared on The Lawrence Welk Show from 1960 to 1982. His instrument is the trombone. Early life Born to a musical fam
popularity: 4
followers: 198
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc191693ccc9dd6f1be17b7ab41155ab009ab839cdba333fa16768c4b970621ae
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954618
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954618
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c7b127fb-177e-41bd-afab-2d928ec982cb.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c7b127fb-177e-41bd-afab-2d928ec982cb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c7b127fb-177e-41bd-afab-2d928ec982cb
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T23:05:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc191693ccc9dd6f1be17b7ab41155ab009ab839cdba333fa16768c4b970621ae","name":"Bob Havens","registered_at":"2026-06-20T21:46:49Z","symbol":"NIM1724708","token_address":"0xe83d43578d9f54b80cee7f3ce829b963ca895159","type":"artist","uuid":"c7b127fb-177e-41bd-afab-2d928ec982cb"}
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 0xc191693ccc9dd6f1be17b7ab41155ab009ab839cdba333fa16768c4b970621ae. Chain 2 (Bitcoin): anchored in block 954618 (2026-06-20T23:05:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c7b127fb-177e-41bd-afab-2d928ec982cb.json and https://artists.proofprofile.net/proofs/artist/c7b127fb-177e-41bd-afab-2d928ec982cb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T23:05:13Z
  text: {"copyright_id":"0xc191693ccc9dd6f1be17b7ab41155ab009ab839cdba333fa16768c4b970621ae","name":"Bob Havens","registered_at":"2026-06-20T21:46:49Z","symbol":"NIM1724708","token_address":"0xe83d43578d9f54b80cee7f3ce829b963ca895159","type":"artist","uuid":"c7b127fb-177e-41bd-afab-2d928ec982cb"}
album: In New Orleans
  type: MusicAlbum
  date published: 1995
album: Back Home in New Orleans
  type: MusicAlbum
  date published: 2007