Dave Ballou
type: MusicGroup
description: Dave Ballou is an American jazz trumpeter and professor of music at Towson University, in Maryland. Early life and education Ballou was born in Peace Dale, Rhode Island. He started playing the trum
popularity: 2
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x974800eeeb839f4f7a490a36fa23e3afe33f25e2644f8ee5364a832faf603780
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954038
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954038
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3e3e74c8-125d-45ca-b5cb-a5f1ccfc9878.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3e3e74c8-125d-45ca-b5cb-a5f1ccfc9878.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3e3e74c8-125d-45ca-b5cb-a5f1ccfc9878
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T02:57:22Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x974800eeeb839f4f7a490a36fa23e3afe33f25e2644f8ee5364a832faf603780","name":"Dave Ballou","registered_at":"2026-06-16T11:15:33Z","symbol":"NIM1034680","token_address":"0x1f6c180bf7bcdc1c47e94492126b26ab8967f6bf","type":"artist","uuid":"3e3e74c8-125d-45ca-b5cb-a5f1ccfc9878"}
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 0x974800eeeb839f4f7a490a36fa23e3afe33f25e2644f8ee5364a832faf603780. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3e3e74c8-125d-45ca-b5cb-a5f1ccfc9878.json and https://artists.proofprofile.net/proofs/artist/3e3e74c8-125d-45ca-b5cb-a5f1ccfc9878.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x974800eeeb839f4f7a490a36fa23e3afe33f25e2644f8ee5364a832faf603780","name":"Dave Ballou","registered_at":"2026-06-16T11:15:33Z","symbol":"NIM1034680","token_address":"0x1f6c180bf7bcdc1c47e94492126b26ab8967f6bf","type":"artist","uuid":"3e3e74c8-125d-45ca-b5cb-a5f1ccfc9878"}