Jeremy Geffen, MD
type: MusicGroup
genre: spoken word
popularity: 3
followers: 39
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x811fa0e5f991490e2bb1b071b814d31d6343851ebec2491dabcb8778e33300ab
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953972
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953972
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2a4723f1-2500-4a87-b49e-cade65b33e00.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2a4723f1-2500-4a87-b49e-cade65b33e00.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2a4723f1-2500-4a87-b49e-cade65b33e00
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T16:31:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x811fa0e5f991490e2bb1b071b814d31d6343851ebec2491dabcb8778e33300ab","name":"Jeremy Geffen, MD","registered_at":"2026-06-16T04:15:33Z","symbol":"NIM0934402","token_address":"0xa8a350a2c430e2c12ec2f0f389d49a082f45441e","type":"artist","uuid":"2a4723f1-2500-4a87-b49e-cade65b33e00"}
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 0x811fa0e5f991490e2bb1b071b814d31d6343851ebec2491dabcb8778e33300ab. Chain 2 (Bitcoin): anchored in block 953972 (2026-06-16T16:31:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2a4723f1-2500-4a87-b49e-cade65b33e00.json and https://artists.proofprofile.net/proofs/artist/2a4723f1-2500-4a87-b49e-cade65b33e00.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T16:31:10Z
  text: {"copyright_id":"0x811fa0e5f991490e2bb1b071b814d31d6343851ebec2491dabcb8778e33300ab","name":"Jeremy Geffen, MD","registered_at":"2026-06-16T04:15:33Z","symbol":"NIM0934402","token_address":"0xa8a350a2c430e2c12ec2f0f389d49a082f45441e","type":"artist","uuid":"2a4723f1-2500-4a87-b49e-cade65b33e00"}