Canada's most comprehensive
home history report.
Buyers, avoid costly hidden problems.
Owners, build trust and sell for more.
1.2M+
Canadian homes indexed
4.8B+
signed data points
A+
Trust grade
142
Signed events
Roof replaced 2024
Signed by Craftmen Roofing
15-yr warranty active
Transfers with sale
Every ProofReport verifies:
Why buyers trust it
Not another listing site.
A verified record.
HouseSigma shows the price. Zillow shows the estimate. ProofChain shows the truth — every renovation, warranty and inspection, signed by the professional who did the work.
Signed by the pros
Contractors, inspectors, insurers and city permits each attest to what they know. Every event is cryptographically signed and permanent.
Owner-controlled
You decide what buyers see for free and what unlocks with a ProofReport.
ProofPromise
If a verified fact turns out wrong at closing, we credit the buyer up to $5,000.
1.2M+
Canadian homes indexed
4.8B+
signed data points
98.4%
attestation validity
A network effect that compounds every time a contractor, inspector or city signs a new event.
Featured Home Passport IDs
See real homes with real history.
142 Maple Grove Ave
Toronto, ON · M4E 2S3
88 Kitsilano Beach Rd
Vancouver, BC · V6K 1N5
221 Elgin Street, Unit 1204
Ottawa, ON · K2P 1L7
86 Troy Street
Mississauga, ON
Multi-partner attestation
Every fact is signed by someone accountable.
A single-source record is trust theatre. On ProofChain, each event is signed by the party in the best position to know — the contractor who built it, the inspector who checked it, the insurer who paid the claim, the city that issued the permit.
Renovation events with cost + warranty
Craftmen, Jiffy
Independent condition reports
Carson Dunlop, Pillar To Post
Claims, coverage, premium history
Intact, Aviva
Permits, assessments, tax history
City of Toronto, MPAC
For owners
Your home is worth more when it can prove itself.
Claim your Home Passport ID, invite the pros who worked on your home to sign what they did, and list with a ProofReport that pays for itself. Owners with verified reports list ~4% higher on average.