PLENA Agreements & Contracts
Indelible video proof of what was agreed — that survives the loss of the paper and the change of memory.
For land sales, livestock sales, family agreements, loans, marriage settlements, and any contract whose enforcement may depend on what witnesses said years from now. Record the agreement on video, send it to PLENA on WhatsApp, receive an indelible receipt anchored on the Bitcoin blockchain — for $3.
Truth boundary. Bitcoin anchoring via OpenTimestamps and permanent storage on a decentralized archive describe the intended architecture, and apply where actually implemented and populated for a given receipt; PlenaProof does not claim live blockchain anchoring or permanent decentralized storage unless it is in place. Payment rails marked "stub" or "placeholder" below are illustrative and are not yet live for transactions.
The receipt layer that the paper cannot provide
In rural and urban informal-economy contexts across many jurisdictions, contracts are physical paper. They sit in a household, in a binder if the family is organized, in a plastic bag more often. They document agreements that may represent a significant share of a household's lifetime wealth: a land sale, a livestock purchase, a marriage settlement, a loan, a business partnership, a family succession. They are vulnerable to fire, flood, theft, deliberate destruction by a future losing party, and the slow disintegration of paper itself.
The witnesses to these agreements — neighbors, community members, traditional or religious authorities, family elders — sometimes deny they were ever present, particularly if one party in a later dispute has the means to alter their memory. They sometimes were present but now defend a different understanding of what was agreed, depending on who has approached them about the dispute. The recurring failure mode is not bad faith on any one person's part — it is that the receipt of the agreement is, in most informal-economy contexts, only the paper and the unaided memory of the witnesses, and both of those are fragile against time, fire, and financial incentive.
Notarization solves part of the problem, but at a price (approximately USD 50 to USD 150 per transaction in many jurisdictions), with a delay (often weeks), and a geographic constraint (travel to a regional capital). For a livestock sale worth USD 200, paying USD 100 to a notary is uneconomical. For a land sale worth USD 1,500, paying USD 100 is a significant share of the transaction value. Most informal-economy transactions are conducted without notarization, and the contract itself is the only evidence the parties retain.
PLENA Agreements & Contracts is built to be the receipt layer for these transactions: a video of the agreement, captured on WhatsApp by either party, sent to PLENA, hashed, anchored permanently on the Bitcoin blockchain, stored permanently on a decentralized archive, and retrievable for the rest of the parties' lives — for USD 3. Same architecture used by PlenaProof for university degree certificates and Bitcoin inheritance documentation, repositioned and priced for the informal-economy household.
The video preserves what no signed paper can: the witnesses being present, the terms being read aloud, the parties stating their agreement in their own voices, the property or asset visible in the frame, the date and location captured. A witness who later claims they were not present can be shown the video. A witness who later defends a different understanding of the terms can be shown the terms being stated and agreed to on camera. The cost of altering the historical record after the fact rises from low (paper and unaided memory) to high (the video is unalterable and cryptographically anchored).
This product does not provide legal advice, does not adjudicate disputes, does not enforce contracts, does not transfer property or money, and does not replace formal notarization where local law requires it. It produces the receipt layer — what was agreed, by whom, with which witnesses, in which language, on which date — in a form that survives the failure of any individual memory, any individual document, and any individual institution.
Five use cases PlenaProof covers
The same capture–hash–anchor architecture serves five different transaction types. The video format is the same; the framing of what to show on camera differs by case.
Land Sale Attestation
Buyer, seller, and witnesses gather at the property. The contract (handwritten, typed, or oral) is read aloud. Each party states their full name, the purchase price, the parcel identification (neighboring properties, GPS coordinates if available, physical landmarks), the payment terms, and any conditions. Witnesses identify themselves and state their attestation. The signatures or thumbprints happen on camera. The video is sent to PLENA. Either party receives the indelible receipt.
Livestock and Movable Asset Sale Attestation
Same pattern, focused on movable property — cattle, goats, sheep, motorbikes, agricultural equipment, market goods at significant value. The animal or asset is shown in the frame. Identifying features (ear tags, brand marks, serial numbers, photographs) are captured. Price, payment terms, and delivery conditions are stated. Useful particularly for cross-border livestock trade, which has documented dispute patterns.
Family Agreement Attestation
Marriage settlements, dowry and bridewealth arrangements, inheritance pre-arrangements, family business succession, family land subdivision among siblings, support obligations for elderly parents. The family agreement is often the document whose absence later causes the most damaging disputes. Captured with all relevant family members present, agreeing on camera, with traditional or religious witnesses if appropriate.
Loan and Credit Agreement Attestation
Informal loans between individuals, microfinance loans where written documentation is asymmetric, cooperative-society loans, family loans, business credit between trading partners. Critical particularly when one party is illiterate or the written document is in a language one party does not fully read. The video captures the loan terms stated in the language the borrower understands, with witnesses corroborating.
Business and Cooperative Agreement Attestation
Partnership formations, cooperative-society agreements, supplier-customer relationships in informal supply chains, employment arrangements outside formal labor inspection, sharecropping and tenant-farmer arrangements. The video captures the terms in a way that survives the inevitable disputes that arise as informal businesses scale or fail.
How to capture the video
A ten-step guided template walks the parties through the recording so the resulting video can stand on its own years later. The full guide is on a dedicated page.
One continuous video. Show the date. Each party and each witness shows their national ID on camera. The asset or property is shown in the frame. The terms are read aloud in the language all parties understand. Each party states agreement; each witness states attestation. Signatures or thumbprints happen on camera. Send the video to PLENA's WhatsApp number.
Three pricing tiers
USD-nominal. Local-currency equivalents shown below at the current effective rate. The page polls a public rate source daily; production rates will come from the mobile-money operators' published rates once merchant agreements are in place.
Basic
The default product. For most users, most transactions.
- Video attestation
- SHA-256 hash, in the browser or on PLENA's WhatsApp handler
- Bitcoin anchoring via OpenTimestamps
- Permanent storage on Arweave
- Retrieval by phone number or verification code, for life
- WhatsApp delivery of the receipt
Premium
For urban property purchases, family business successions, cross-border contracts, and disputes likely to reach court.
- Everything in Basic
- Multi-witness coordination — PLENA prompts up to four witnesses for separate corroborating statements within 48 hours
- Annual refresh reminders to both parties for the duration of the contract
- Multilingual handover packet pre-formatted for legal proceedings in named jurisdictions
- Professional translation review (not just machine) of the contract terms
- Optional pairing with PLENA Capacity Attestation methodology
- Priority retrieval and support
Institutional
API access for high-volume customers: notary firms, microfinance institutions, real estate companies, agricultural cooperatives, NGO networks.
- Bulk video attestation via API
- Custom retrieval and dashboard for the institution
- Branded receipt templates and handover packets
- SLA, support, and integration assistance
- Volume pricing below the per-unit Basic price
The price is for the receipt layer, not for verification of content. PlenaProof does not verify the underlying transaction value, the legality of the agreement, or the truthfulness of statements on camera. PlenaProof preserves what was said and when, and seals it cryptographically. What the receipt is worth in any later proceeding depends on local law, the receiving body, and the underlying facts — not on PLENA's seal alone.
Six ways to pay
Multiple rails so the product is accessible across jurisdictions with different payment infrastructures. Mobile money for markets where it dominates, card payments where it does not, stablecoins and Lightning for users who prefer them, bank transfer for institutional buyers. A cash-via-partner-network option is reserved for the next phase.
1. Mobile Money Stub — production credentials needed
The dominant rail across many informal-economy markets. Confirmation delivered via WhatsApp within minutes of payment. The operators displayed here are detected by IP geolocation; the list below is illustrative.
Production integration via Flutterwave, Cellulant, DPO Group, or an equivalent payment aggregator. See the production deployment doc for credential requirements.
2. USDC Stablecoin Stub — placeholder address
Receive on Base, Polygon, or Solana. Auto-convert to USD operating capital on receipt.
Production integration via Coinbase Commerce or a comparable processor that handles multi-chain receipt and auto-conversion. Copy address
3. Bitcoin via Lightning Stub — placeholder invoice
A Lightning invoice generated per payment. Auto-convert to USD at moment of receipt — Bitcoin held only momentarily.
Production integration via OpenNode, Strike API, or self-hosted BTCPay Server.
4. Card Payments Stub — Stripe test mode
Stripe for diaspora users paying on behalf of family; Flutterwave as a global alternative. Surfaced prominently for IP geolocations where mobile money is less prevalent.
Production activation requires a Stripe account (Connect for multi-currency) and a Flutterwave account as the global alternative.
5. Bank Transfer Email for details
Fallback for institutional customers who require it. No embedded payment flow — PLENA replies with transfer details on request.
6. Cash via Partner Network Coming soon
Future expansion. Cash payment at a cooperative, microfinance institution, or equivalent local network that PlenaProof has partnered with as a physical agent. Activated as the partnership network builds out.
Interested in becoming a PLENA partner agent? hello@joinplena.com
Existing instruments this complements
PLENA Agreements & Contracts complements — does not replace — the established systems people already use.
- Local notarial systems where they exist and are accessible
- Cadastre and national land registries
- Customary law and traditional dispute resolution mechanisms
- Cooperative society records
- Community council records
- Religious institution records — church baptism and marriage registers, mosque records, and equivalent records in other traditions
- Microfinance institution loan documentation systems
- Mobile-money transaction records
What this does not do
PLENA Agreements & Contracts does not provide legal advice. It does not adjudicate contractual disputes. It does not enforce contracts or compel performance. It does not transfer ownership of property or money. It does not constitute formal notarization where local law requires notarization in specific form. It does not verify the identity of the parties beyond what is visible in the video. It does not guarantee acceptance by any court, tribunal, registry, or institution.
What it does: produces an indelible video record of what was said and agreed on the date of recording, hashed cryptographically, anchored on the Bitcoin blockchain, and stored permanently in a decentralized archive — accessible to the parties for life.
Why this differs from other PLENA products
From ORIGINA Individual
Same underlying architecture — browser hashing, OpenTimestamps anchoring — different positioning. ORIGINA Individual is built for researchers and creators protecting intellectual property and human-authorship priority. PLENA Agreements & Contracts is built for households and communities documenting commercial and family agreements. Same hash, same Bitcoin block, different audience and use case.
From ORIGINA Institutional
ORIGINA Institutional is built for institutions issuing documents at scale (universities issuing degrees, governments issuing licenses). PLENA Agreements & Contracts is built for parties to peer-to-peer transactions documenting what they agreed.
From the existing sector pages
The existing sector pages are positioning frameworks for specific markets. PLENA Agreements & Contracts is a transactional product — a thing the user pays for and uses — rather than a framework or institutional infrastructure. It is the first explicitly commercial-revenue product in the PLENA suite.
The 100-Year Operating Commitment
Adapted for parties to informal-economy agreements whose enforcement may turn, decades later, on what can still be shown about the day it was signed.
PLENA Agreements & Contracts is built on the multi-year arc of household and community contracts whose enforcement may turn, decades after signing, on what can still be shown about the day it was made. Every artifact produced here is replicated across multiple independent archives, cryptographically anchored to public records that do not depend on any single jurisdiction, and verifiable offline by either party or their designated successor. Receipts survive the failure of any individual memory, any individual document, any individual institution, and the slow attrition of the paper itself.
Languages
This page launches in PLENA's 8 live languages. The language switcher defaults to the user's browser language with manual override available; the master translation runtime handles non-English variants. Human-reviewer queue priorities for this product follow the general site priorities; contact hello@joinplena.com for translator inquiries. See the full Translation Roadmap.
Scholarship and norms
This product is built in conversation with:
- Hernando de Soto, The Mystery of Capital — on informal property and documentation
- Bina Agarwal, A Field of One's Own — on land tenure documentation and gender
- World Bank ID4D, Identification in the Context of Forced Displacement
- Norwegian Refugee Council, housing-land-property restitution literature
- Klaus Deininger and the World Bank Land Policy work
- UN-Habitat Global Land Tool Network publications
- The PLENA white paper Beyond the Will
Related PLENA receipt grammar
For institutional partners — notary firms, microfinance institutions, cooperatives, real estate companies, NGO networks
PlenaProof welcomes partner conversations for institutional integration of the Agreements & Contracts receipt layer. Volume pricing and API access via the Institutional tier.