Jesse Leach
type: MusicGroup
description: Jesse David Leach (born July 3, 1978) is an American musician, best known as the lead vocalist of the metalcore band Killswitch Engage. He is also a vocalist for Times of Grace and The Weapon. Leach c
popularity: 3
followers: 4
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa1231b7f86d5d9fabf938ff0eabdbe72c7ea4ac56f2b3242db8a736816286194
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954032
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954032
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3b95e349-718d-461b-b2b1-04be2f4a6a6a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3b95e349-718d-461b-b2b1-04be2f4a6a6a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3b95e349-718d-461b-b2b1-04be2f4a6a6a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T01:59:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa1231b7f86d5d9fabf938ff0eabdbe72c7ea4ac56f2b3242db8a736816286194","name":"Jesse Leach","registered_at":"2026-06-16T10:18:57Z","symbol":"NIM1021181","token_address":"0x7eaaee92cd5881280b5f36f374268c6fea463443","type":"artist","uuid":"3b95e349-718d-461b-b2b1-04be2f4a6a6a"}
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 0xa1231b7f86d5d9fabf938ff0eabdbe72c7ea4ac56f2b3242db8a736816286194. 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/3b95e349-718d-461b-b2b1-04be2f4a6a6a.json and https://artists.proofprofile.net/proofs/artist/3b95e349-718d-461b-b2b1-04be2f4a6a6a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xa1231b7f86d5d9fabf938ff0eabdbe72c7ea4ac56f2b3242db8a736816286194","name":"Jesse Leach","registered_at":"2026-06-16T10:18:57Z","symbol":"NIM1021181","token_address":"0x7eaaee92cd5881280b5f36f374268c6fea463443","type":"artist","uuid":"3b95e349-718d-461b-b2b1-04be2f4a6a6a"}