Modules · Signature EngineConstruction Operating System

Sign it,
and it's done.

Native e-signature that knows what it's signing. Route a change order, a contract or a pay application for sequential signature — and when it's executed, the record it belongs to is already updated. No third-party envelope, no re-keying.

Follow the signature

CO-014 · Storefront Revision · Mock

Watch a signature become an update.

A standalone signing app returns a signed PDF. Here, one execution moves from envelope → sequence → signature → sealed — and the contract, the budget and the schedule already know.

co-014 · mock · execution.log

Recipients

3

Signed

3 of 3

Status

Executed

Last write

awaiting envelope

01writes

Digital Signatures

Envelope opened · 3 recipients

The signer sees the change order in context — not a PDF mailed by a third party.

02writes

Sequential Routing

Routed PM → CM → Owner

Signatures follow the approval chain in order. Ball-in-court is always clear.

03writes

Templates

Contract template applied

Signer roles and fields preset, so an envelope goes out in seconds, correctly.

04writes

Audit Trail

Executed · written back to contract

The audit trail and the executed record are one and the same — on the platform.

one signature · written backsignature-engine.execution / sealed
Tools ·01 · Digital Signatures02 · Sequential Routing03 · Templates04 · Audit Trail

The tools · Signature Engine

Four tools. One execution.

One thread runs down the page — an envelope opened in context, a chain routed in order, a template sent in seconds, an audit trail sealed and written back.

ILLUSTRATIVE MOCKUP — NOT CUSTOMER DATA

01
Tool

Digital Signatures

  • · In-platform Signing
  • · Legally Binding
  • · On the Record
  • · No Third-party

A signature that knows the document.

E-signature built into the platform, not bolted on — the signer sees the change order, the contract or the pay app in context, and the signed document is the record itself. Not a copy mailed back from a third-party service.

writes → envelope opened
CO-014 · STOREFRONT REVISION● OPENED

Document

Change Order CO-014

+$212,400 · +3 days

Sign here✎

"the platform knows this is a change order."

signed = the recordnot a mailed-back copy
02
Tool

Sequential Routing

  • · Approval Chains
  • · Ball-in-Court
  • · Turn Notifications
  • · Order Enforced

Routed by the approval chain.

Signatures follow the project's approval chain in order — each signer notified when it's their turn, ball-in-court always clear, nothing signed out of sequence.

writes → routed PM → CM → Owner
ROUTING · CO-014● IN SEQUENCE
  1. ✓

    Project Manager

    Signed

    1 of 3
  2. ✓

    Construction Manager

    Signed

    2 of 3
  3. ◉

    Owner

    Signing

    3 of 3
chain-driven ordernobody signs out of turn
03
Tool

Templates

  • · Signer Roles
  • · Preset Fields
  • · Reusable
  • · Consistent

Reusable, ready to send.

Signature templates for the documents you send again and again — contracts, change orders, pay applications — with signer roles and fields preset, so an envelope goes out in seconds, correctly, every time.

writes → contract template applied
TEMPLATES · ON FILE● READY
TemplateSignersUse
Change OrderPM → CM → Owner42 sent
SubcontractGC → Subapplied
Pay ApplicationSub → GC → Ownerready
preset, correctan envelope in seconds
04
Tool

Audit Trail

  • · Tamper-evident
  • · Timestamped
  • · Chain of Custody
  • · Writes to Record

Signed, sealed, written back.

A complete, tamper-evident record of who signed what and when — and because it's on the platform, execution writes back: the contract value updates, the budget absorbs the change, the schedule already moved. The audit trail and the executed record are one and the same.

writes → executed · written back to contract
AUDIT TRAIL · CO-014● EXECUTED
  1. ✓

    PM signed

    Jul 26 · 14:22

  2. ✓

    CM signed

    Jul 27 · 09:10

  3. ✓

    Owner signed

    Jul 28 · 11:05

  4. ◆

    Executed → contract +$212,400 · budget updated · schedule +3d

    Jul 28 · 11:05

tamper-evidentexecution writes to the record
Four tools · One executionsyntecton.signature-engine / tools — 2026
Steel detail — executed on the record, not a mailed-back PDF

Executed on the record — not a mailed-back PDF

Why it's not DocuSign

A standalone envelope signs a PDF. This signs a change order.

A third-party e-signature service sees a document — it doesn't know the number inside, and when it's signed, someone still has to re-key it into the budget. Signature Engine signs on the same record as the project, so the signature IS the update: the contract grows, the budget absorbs it, the schedule already knows. Integrated, not free — and a fraction of what a standalone signing contract costs, because it knows what it's signing.

PreconstructionFinancial ManagementProject ControlsField ExecutionProject RecordSafety & ComplianceSignature EngineReview Engine

Workflows

Signature Workflows

in-platform signinglegally bindingon the recordno third-partyapproval chainsball-in-courtturn notificationsorder enforcedsigner rolespreset fieldsreusable templatesconsistent envelopestamper-evidenttimestampedchain of custodywrites to recordnative e-signaturechange orderscontractspay applicationsexecuted & sealed
Skyline — signed on the record, the budget already knows

Signed on the record — the budget already knows

See it on a real project · Signature Engine

One signature. One record.

Legacy tools route documents through a signing app that doesn't know the number on the page — someone re-keys it into the budget after the fact.

The Construction Operating System signs on the record — envelope in context, sequential chain, template preset, audit trail sealed and written back to the contract, the budget and the schedule.

Signature Engine is where a signature becomes an update — on the project it belongs to.

01Digital Signatures
02Sequential Routing
03Templates
04Audit Trail
syntecton.signature-engine / outcomes — 2026

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