Ben Jaffe
type: MusicGroup
genre: swing music
description: Benjamin Jaffe (born January 26, 1971) is the creative director of Preservation Hall and plays tuba and double bass with the Preservation Hall Jazz Band. Early life and education He is the son of Pre
popularity: 3
followers: 199
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x56f5bac0ccd1031396946951d44a4cd32b0e5ab2e27cedaeaf1eabd56a2140e5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954650
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954650
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d9963fe5-e9ee-4728-ac98-5f2d7c3bc8a5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d9963fe5-e9ee-4728-ac98-5f2d7c3bc8a5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d9963fe5-e9ee-4728-ac98-5f2d7c3bc8a5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T04:51:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x56f5bac0ccd1031396946951d44a4cd32b0e5ab2e27cedaeaf1eabd56a2140e5","name":"Ben Jaffe","registered_at":"2026-06-21T04:23:13Z","symbol":"NIM1818302","token_address":"0x6b03135fe47beeb0f35c72b9f00757865ab66687","type":"artist","uuid":"d9963fe5-e9ee-4728-ac98-5f2d7c3bc8a5"}
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 0x56f5bac0ccd1031396946951d44a4cd32b0e5ab2e27cedaeaf1eabd56a2140e5. Chain 2 (Bitcoin): anchored in block 954650 (2026-06-21T04:51:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d9963fe5-e9ee-4728-ac98-5f2d7c3bc8a5.json and https://artists.proofprofile.net/proofs/artist/d9963fe5-e9ee-4728-ac98-5f2d7c3bc8a5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T04:51:12Z
  text: {"copyright_id":"0x56f5bac0ccd1031396946951d44a4cd32b0e5ab2e27cedaeaf1eabd56a2140e5","name":"Ben Jaffe","registered_at":"2026-06-21T04:23:13Z","symbol":"NIM1818302","token_address":"0x6b03135fe47beeb0f35c72b9f00757865ab66687","type":"artist","uuid":"d9963fe5-e9ee-4728-ac98-5f2d7c3bc8a5"}