Origin verified. Custody appended.
For assets with long timelines, use a file that verifies itself.
AssetSeal issues a single provenance record for an asset’s origin, then records custody as append-only events — without rewriting the origin seal.
Where AssetSeal fits
One surface to verify. Three levels of depth.
A portable file that stays intact. Anyone can verify it. No account required.
Seal origin once, then append custody events. The first seal never changes — the record only grows.
For teams: API sealing, webhooks, and volume workflows around sealed proof files.
Collector checklist
When you’re acquiring an asset
Screenshots fail. Originals verify.
Drop it into Verify. You get a deterministic verdict — online or offline.
Origin is sealed once. Custody is append-only. Missing links are visible by design.
Seal the origin
Create the source-of-truth record the moment the asset enters custody. That first seal becomes the reference.
- • Photos + identifying marks (serials, inscriptions, grading refs)
- • Optional attachments (certs, invoices, appraisals)
- • Verifier link + QR for checking
Append custody events
Custody doesn’t edit history. Each handoff is recorded as a new event — auditable over time.
- • Sale, consignment, loan, vault intake, insurance events
- • Optional co-sign (gallery, appraiser, vault, insurer)
- • Clear progression: origin → custody → current custodian
One file. One verdict.
Verify independently.The file verifies itself.
- • Cryptographic integrity check (tamper = fail)
- • Custody validation (missing link = flagged)
- • Offline verification supported
Paper you can’t trust
Counterfeits thrive on editable documents and unverifiable provenance. AssetSeal replaces “trust me” with a file that verifies itself.
- • Altered PDFs / swapped photos / reprinted certificates
- • “Same docs, different item” listings
- • Retroactive edits and missing custody links
A clean public surface
Verification stays public. When you need more detail, you can attach deeper evidence without changing the public truth.
- • A shareable verifier link + QR
- • Optional attachments for audits and disputes
- • Exportable records for vaults, insurers, and collectors
Keep provenance intact across resale, storage, and inheritance.
Issue origin + custody in a form collectors can verify independently.
Public verification + append-only custody + exportable audits.
