Jack Grisham
type: MusicGroup
description: Jack Grisham (born July 22, 1961) is an American rock singer from Southern California. He is the vocalist for the punk rock band T.S.O.L. (True Sounds of Liberty), which emerged from the late 1970s Lo
popularity: 14
followers: 155
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe2de8f0c7bbc103459ba00c90d2b6c00083fd087a40329176dc9b3c41ddfb331
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953742
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953742
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9431f56e-09d0-4221-8e34-953305eb929f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9431f56e-09d0-4221-8e34-953305eb929f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9431f56e-09d0-4221-8e34-953305eb929f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T04:47:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe2de8f0c7bbc103459ba00c90d2b6c00083fd087a40329176dc9b3c41ddfb331","name":"Jack Grisham","registered_at":"2026-06-14T20:04:50Z","symbol":"NIM0561852","token_address":"0x1600a91920abb621b8aee18df756080d72ebc467","type":"artist","uuid":"9431f56e-09d0-4221-8e34-953305eb929f"}
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 0xe2de8f0c7bbc103459ba00c90d2b6c00083fd087a40329176dc9b3c41ddfb331. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9431f56e-09d0-4221-8e34-953305eb929f.json and https://artists.proofprofile.net/proofs/artist/9431f56e-09d0-4221-8e34-953305eb929f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T04:47:56Z
  text: {"copyright_id":"0xe2de8f0c7bbc103459ba00c90d2b6c00083fd087a40329176dc9b3c41ddfb331","name":"Jack Grisham","registered_at":"2026-06-14T20:04:50Z","symbol":"NIM0561852","token_address":"0x1600a91920abb621b8aee18df756080d72ebc467","type":"artist","uuid":"9431f56e-09d0-4221-8e34-953305eb929f"}