Attest to your work. Own your reputation. Get paid on every report.

ProofChain is a network of accountable parties. Every renovation, inspection, policy, permit and warranty is signed by the pro in the best position to know. Contribute signed data, earn a revenue share every time a ProofReport that includes your attestation is purchased.

ContractorHome InspectorInsurance CarrierMLS / Realtor BoardMunicipal Authority

Contractors

Craftmen, Jiffy, independents

Sign every renovation you complete. Your workmanship warranty follows the home for 30 years — proof of quality across every future sale.

Open console

Home Inspectors

Carson Dunlop, Pillar To Post

Publish inspection findings against the Home Passport ID. Buyers pay to unlock — you earn a share every time your report is referenced.

Open console

Insurance Carriers

Intact, Aviva, Sonnet

Attest to policies in force, premium history and claim outcomes. Underwrite from verified data, not applicant-declared history.

Open console

MLS / Realtor Boards

TREB, CREA, regional

Publish sold prices, DOM, listing history to any Home Passport ID. Enrich every buyer's view — earn revenue on every unlock.

Open console

Municipalities

Cities, MPAC, BC Assessment

Permits, tax rolls, deed transfers — anchor authoritative records against the Home Passport ID. Reduce disputes and improve compliance.

Open console

Suppliers & Manufacturers

Lennox, Kohler, GAF, Home Depot

Attach warranty attestations to every furnace, water heater, roof or appliance you ship. Homeowners open service claims that route straight to your desk.

Open console

Reputation network

Ranked by verified work — signed on ProofChain, not paid placements.

Browse partner directory

Developer platform

One signed API. Every home in Canada.

Push signed events to any Home Passport ID with an ed25519 keypair and two lines of code. Read verified summaries for underwriting, valuation or listing enrichment.

Read the developer docs

POST https://api.proofchain.io/v1/ingest/event
Authorization: Bearer <ISSUER_KEY>

{
  "proof_id": "PC-ON-TO-4821",
  "category": "renovation",
  "title": "Kitchen remodel",
  "date": "2025-06-04",
  "financial": {
    "cost_amount": 48200,
    "cost_currency": "CAD",
    "warranty_start": "2025-08-15",
    "warranty_end": "2030-08-15",
    "invoice_hash": "sha256:d41d8cd98f00…"
  },
  "signature_ed25519": "…"
}

10-30%

Revenue share on every ProofReport that references your attestation

Zero

Cost to publish signed events — you monetize the reads, not the writes

Portable

Your issuer Home Passport ID moves with you across every home in Canada