CORVAIR KNOWLEDGE SUBSTRATE · VALIDITY WARRANTS

Prove the basis
of a decision.

A Validity Warrant is a sealed record of what a decision rested on: the facts and sources used, who decided and under what authority, and when. It is signed, timestamped and linked to the warrant before it, so anyone can check it later, even offline. It proves what the decision rested on, not that the decision was right.

What a warrant records How a warrant is checked
VALIDITY WARRANTW-2611-0412

Decision: approve an 8% discount on quote 4471

Rested onPrice policy, version 4 · Quote 4471 · Tom Berg's email of 3 Nov Decided byPriya Shah, within her Deal Desk limit Sealed8 Nov 2026, 10:14 Singapore time In the chainNumber 2,417 in Northcott's ledger, after 2,416
✓ Valid. Anyone can check it, even offline.
A sealed decision, as anyone checking it would see it. Sample data.

What a warrant
records.

You cannot always prove a decision was right. You can always prove what it rested on, who made it and when.

VALIDITY WARRANT
1 The decision or answer
what was decided, or what was asked
2 What was known
the facts used, each with its source and tier, at that moment
3 How it was reached
the passages and claims it rests on
4 Who decided
the person or agent, and the authority they acted under
5 Sealed
signed, timestamped and added to its chain
Signed and timestamped
checkable later, offline
It still checks months later.
Anatomy of a Validity Warrant.

Sealed in
four steps.

Every warrant goes through the same steps, in the background. A request is accepted at once, and the warrant counts once it is sealed. A step that fails is tried again, and the chain never has a gap. When the signing service is already running, sealing takes under 0.3 seconds, measured.

Fixed formThe record is put in one exact form, so the same record always gives the same digest.
SignedWith Corvair's governance key, held in a key service and never exported.
TimestampedAn RFC 3161 timestamp from Corvair's own timestamp service.
ChainedEach warrant points to the one before it in its chain.

Erase the content.
The proof still checks.

A warrant does not sign the content itself. Each part is turned into a sealed commitment, and the warrant signs those. The content is kept apart from the proof, so a chosen part can be shown to someone who needs it, or erased, and the warrant still checks.

When it is sealed
The answer
"Clause 7 allows a 30-day notice."
Sealed commitment
Premise 1
Master agreement, clause 7.2
Sealed commitment
Premise 2
Email from the client, 3 March
Sealed commitment
Source
Contract, version 3
Sealed commitment
ONE ROOT
Signed in the warrant
with the timestamp and the chain link
After Premise 2 is erased
The answer
"Clause 7 allows a 30-day notice."
Sealed commitment
Premise 1
Master agreement, clause 7.2
Sealed commitment
Premise 2
Email from the client, 3 March erased
Sealed commitment
Source
Contract, version 3
Sealed commitment
ONE ROOT
Signed in the warrant
still checks: Premise 2 reported as erased
The proof outlives the content it describes. Sample data.

Seven checks. Anyone can run them.

A warrant is checked with three independent pieces of trust material: Corvair's published key, the timestamp authority's certificate and the chain the warrant belongs to. The same seven checks run online and offline, months or years later, without asking the Knowledge Substrate.

Five are required. One applies only where a public log is set up. The last, source drift, is advice: it says a source has changed since, without making the warrant invalid.

Warrant W-2611-0412Checked on 8 Nov 2026, offline
✓The fixed form gives the same digestrequired ✓The signature matches Corvair's published keyrequired ✓The key was valid when it signedrequired ✓The timestamp is genuinerequired ✓It points to the warrant before it in its chainrequired –Included in a public lognot set up !One source changed on 4 Novadvisory: drift
Valid. The basis is as it was sealed. A later change to a source is reported as drift, not as a failure.
Every check needs only the warrant, the published key and the timestamp. Sample data.

Decisions and what came of them.

The Knowledge Substrate seals decisions, and later what came of them: won, lost, granted, refused or reversed, on the same chain, after the decision.

Answers and files on request.

An application can ask for a warrant on any answer, or on a generated file, when it needs one.

An erasure leaves a receipt.

When content is erased, the erasure itself is sealed, so there is proof that it happened and what it covered.

What a warrant
draws on.

A warrant gathers its evidence from the rest of the substrate at the moment it is sealed, so the proof points to the exact passages, decisions and file versions that were used.

Knowledge
the passages and claims behind an answer, their scores and the sources' fingerprints
Memory
the decision, and later what came of it
Vault
the exact file versions used as evidence
Your application
asks for a seal on a decision, an answer or a file
SEALED
Validity Warrant
signed, timestamped, chained
AUDIT
List, check, export and replay
any warrant on a ledger you may see
Evidence comes from Knowledge, Memory and the Vault. The audit can replay what was known at the time.

Other systems can seal their own decisions.

A ledger is a chain owned by a tenant, separate from any knowledge base, Vault or memory. The warrant log outlasts the records it points to, so a proof survives when the source is erased. Each application seals as the client it is registered as.

The signing service starts only when it is needed and signs in the background, so a decision never waits for it.

Compliance and governance in Corvair Virtual Worker
IN CORVAIR VIRTUAL WORKER

Each company has its own ledger.

  • Corvair Virtual Worker proves five kinds of decision on the company's ledger.
  • It can seal what came of a decision, such as a deal won or lost.
  • It sends a digest of the decision and its source, never the content.
  • The decision itself stays in Corvair Virtual Worker.
  • Each agency client has a ledger of its own.

Words on
this page.

What each term means, in plain words.

Validity Warrant
A sealed record of what a decision or an answer rested on, who made it and when.
Premise
One fact, passage or file a decision rested on.
Seal
To fix a warrant so it can never be changed unnoticed: it is put in one exact form, signed, timestamped and chained.
Digest
A short fingerprint of some content. The same content always gives the same digest, and the content cannot be worked out from it.
Timestamp
Proof from an independent time service that the warrant existed at that moment.
Chain
Each warrant points to the one before it, so none can be removed or altered without the break showing.
Ledger
A company's own chain of warrants, kept apart from its documents and conversations.
Commitment
A sealed stand-in for one part of a warrant. It can be checked against that part, but reveals nothing by itself.
Drift
A source has changed since the warrant was sealed. It is reported as advice, not as a failure.
Every term in the glossary

Show what a decision rested on.

See how Corvair Virtual Worker records its decisions.

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