PLENA Exchange Proof-of-Reserves Attestation
Third-party witnessed proof-of-reserves — for the post-FTX regulatory environment. For crypto exchanges and custodians required to demonstrate solvency under MiCA, the GENIUS Act, Singapore MAS rules, and equivalent global frameworks — and for the customers who deposit funds based on those demonstrations.
Opening problem
Post-FTX, every retail crypto exchange claims proof-of-reserves. Almost none of them produce documentation an auditor would actually sign off on. The technical methods (Merkle tree commitments, ZK proofs of solvency) are sound but incomplete — they prove the exchange held what it claimed at the moment of the proof, not that the exchange's liabilities were what it claimed, not that the assets were not borrowed for the proof, and not that the exchange's accounting practices were what they claimed.
PLENA Exchange Proof-of-Reserves Attestation provides the human-witnessed third-party attestation layer that complements the cryptographic proofs: witnessed declaration of the exchange's accounting practices, sworn reviewer attestation of the proof methodology applied, refresh discipline across reporting periods, and handover packets calibrated to regulator and customer audiences.
Five workflows PlenaProof covers
Accounting Practice Attestation
Witnessed declaration of the exchange's accounting practices — basis of consolidation, treatment of customer assets versus operating assets, treatment of related-party balances.
Reserve Methodology Witnessed Declaration
Sworn reviewer attestation of the proof methodology applied: Merkle commitment design, ZK proof verification, the scope and exclusions of what was proved.
Refresh Cycle Attestation
Per-period refresh of the proof, with continuity across reporting periods so customers and regulators can verify the exchange has not shifted methodology between cycles.
Customer Handover Packet
Customer-facing receipt of what the exchange demonstrated at each cycle, formatted for non-expert customer review.
Multi-Regulator Submission Packet
Forum-specific compilations for MiCA, GENIUS Act, MAS, FSA Japan, FCA UK, and other VASP regimes — same underlying attestations, multiple regulator-readable formats.
Institutional version
Target buyers and partners: Crypto exchanges under MiCA (EU), the GENIUS Act (US, when finalized), MAS (Singapore), FSA (Japan), and VASP licensing regimes globally; on-chain forensics firms (Chainalysis, TRM Labs); auditors (Big Four crypto practices, specialist crypto auditors like Armanino's successors); regulators directly.
Same complement-not-replace disclaimer. PlenaProof does not certify exchange solvency, replace formal financial audit, or guarantee customer fund safety. It produces the witnessed attestation layer that auditors and regulators can act on.
The 100-Year Operating Commitment
Exchange failures often produce litigation that extends years beyond the failure event. Every artifact replicated, anchored, verifiable across the full arc of regulatory follow-up, customer claims, and post-failure receivership.
Why this differs
From technical-only proof-of-reserves (Merkle / ZK): PlenaProof adds the human-witnessed attestation of accounting practices that the cryptographic methods alone cannot capture. From traditional financial audit: PlenaProof is the witnessed receipt layer the exchange and the auditor both reference — not a replacement for either.
Existing instruments this complements
- MiCA Title V (CASP authorization)
- GENIUS Act stablecoin and exchange provisions (US)
- MAS Payment Services Act (Singapore)
- Japan FSA crypto-exchange regulation
- UK FCA cryptoasset registration
- Equivalent VASP licensing regimes globally
What this does not do
PLENA Exchange Proof-of-Reserves Attestation does not certify exchange solvency. It does not replace formal financial audit. It does not guarantee customer fund safety. It does not constitute regulatory approval. It does not provide investment advice. It documents.
Languages
Launches in PLENA's 8 live languages with priority for major exchange-licensing jurisdictions. Contact hello@joinplena.com for translator inquiries.
Related PLENA receipt grammar
For crypto exchanges, custodians, auditors, and regulators
Exchanges under MiCA / GENIUS / MAS / FSA / FCA / global VASP regimes; on-chain forensics (Chainalysis, TRM Labs); Big Four crypto practices and specialist crypto auditors; regulators: PlenaProof welcomes pilot conversations.