Use case · worked example

No proof, no draw.

Construction loans pay out in stages: foundation, framing, roof. Today the lender trusts the builder's photos or sends an inspector. With Teleport, each draw request becomes a verification task, with an independent check on site when the photos aren't enough. The lender releases the money once the stage is proven.

An independent check of construction draw 3A building lot from above with a newly framed house. Roof trusses go up. A draw request arrives: draw 3 of 7, framing, $48,000. A person walks along the public sidewalk and captures the house from three spots without entering the lot. Four checks tick: on the parcel, new work since draw 2, captured within 72 hours, framing in place. Verified, and a receipt prints: draw 3 released, by the lender.QUARRY LN · PUBLIC WAYLOT 7 · PARCELFRAMING · SHEET A-2DRAW 3 / 7FRAMING$48,000CHECKSON PARCELNEW SINCE D2WITHIN 72 HFRAMINGVERIFIEDDRAW 3RELEASEDBY THE LENDER
Example · fictional lot · captured from the public way
§ 01

Seven draws. Each one checked before it's paid.

A house gets paid for the way it gets built: one stage at a time. Each stage is a draw, and each draw is a question the lender has to answer. Is the work really there?

Who asks
The lender's draw system, under a mandate. It posts a task the moment a draw request arrives.
Who does it
The builder sends guided photos. Above a threshold, a local person with no stake in the builder captures the site, unannounced.
Evidence
Live capture through Teleport: photos, GPS and trusted time. Nothing from the camera roll.
Who pays
The lender: $75 per verified draw. The independent capturer gets $35 on accept. Example figures.
The money
The $48,000 draw stays with the lender. Teleport never holds it. It sends the decision.
You get
A decision your system can release money on, and a proof that says what was checked and what wasn't.
Example · photo to come

The lender shouldn't release $48,000 on a photo the builder chose.

The short version

The builder still sends photos, and small draws can pay on those alone. Above that, someone with no stake in the builder stands on the sidewalk and looks.

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Lot 7, Quarry Lane is a fictional site. Prices are illustrative.

§ 02

The bigger the draw, the higher the bar.

Seven draws, one house. Each stage is checked with evidence in proportion to the money it releases, and the final draw always gets the most.

DRAWAMOUNTBILD1 FOUNDATION$22KD2 SLAB + SILL$30KD3 FRAMING$48KD4 ROOF$41KD5 WINDOWS$36KD6 ROOFING$19KD7 FINAL$55KB · BUILDER PHOTOSI · INDEPENDENT VISITL · LICENSED INSPECTOR
Draw amountEvidence requiredAssurance
Under $25,000The builder's photos, if every check passesStandard, labelled “submitted evidence”
$25,000 – $150,000The builder's photos, plus an independent Teleport captureVerified
Over $150,000, or the final drawAn independent capture, a licensed inspector and a person reviewingHigh assurance

Thresholds are the lender's, set in its mandate. These are examples.

§ 03

From draw request to release, in six steps.

The builder asks, the lender decides. Teleport sits in between and finds out whether the stage is actually there.

  1. 01

    Draw request

    Draw 3 of 7: framing complete, $48,000. The lender's system posts a verification task.

  2. 02

    Set the bar

    The amount decides the evidence: photos alone, an independent visit, or a licensed inspector too.

  3. 03

    Builder's photos

    A guided checklist through a Teleport link. Every wall, the roof structure, the stair openings. Live, not from the camera roll.

  4. 04

    Independent visit

    Above $25,000, or if the photos are thin: someone nearby captures the site from the street. Unannounced.

  5. 05

    Decide

    Rules check the lot, the time and the progress since draw 2. One question goes to a model. Big draws get a person too.

  6. 06

    Release

    Teleport sends the decision and the proof. The lender's own system releases the draw.

§ 04

Five rules, one question, and what none of them prove.

Each check says what it proves and what it doesn't. Only one asks a model: does this look like the framing on the plans? A versioned policy, not the model, makes the decision.

CheckProvesDoesn't proveByResult
On the right lotCaptured inside the parcel boundary, matched to the address and the street view.—RulePassed
FreshCaptured within 72 hours of the draw request, by trusted device time.—RulePassed
Not reusedNo photo matches an earlier capture of this project, or of any other.—RulePassed
New since draw 2The site has moved on from the last accepted draw. The same evidence can't pay twice.Whether the work was worth the money.RulePassed
Permit sign-offThe city's framing inspection is on record, and it passed.The city inspector's own judgement.RulePassed
Framing in placeExterior walls framed on every side and trusses set, as drawn on sheet A-2.That it's to code, structurally sound, or built with the specified materials.ModelPassed

Photos weak or a check unsure? The lender sees “needs review” with a reason, and an independent visit goes out. Not silence, and not a quiet pass.

§ 05 · Scope and site safety

Visibly in place. Not certified to code.

A Teleport proof says the framing is up. It doesn't say the framing is right. That line goes in the proof, on the proof page and in the contract. And nobody walks onto a live site to find out: capture is from the street unless the builder says otherwise.

GATEBUILDER'S OK · ESCORT · PPEPUBLIC WAY · CAPTURE FROM HERE
Verification scope · Draw 3v1.2
Verified
Framing visibly in place, per sheet A-2
Not verified
Code compliance, soundness, materials
Access
Public way and fence line only
Inside
Builder's OK, an escort, hard hat and hi-vis
Hours
Site hours, in daylight
Funds
Held and released by the lender

Its hash goes into the proof, and the proof page shows it word for word.

§ 06

What needs care.

Real money moves on these proofs, just not through Teleport. That raises the stakes on every one.

  • Say what was proven

    If a lender reads “framing accepted” as “framing is sound” and the house has defects, Teleport gets the blame. Every proof states its scope, word for word, and so does the contract.

  • Nobody wanders onto a live site

    By default, capture happens from the street or the fence line. Going inside needs the builder's permission, an escort and protective gear, recorded before anyone is matched.

  • Builders who fake it

    Another house, an old photo, a staged site. Geofence and street-view matching, progress across draws, unannounced visits and duplicate checks make each one hard.

  • Licensed inspectors stay

    Some loan programs require named, qualified inspectors. Teleport adds to licensed inspection at the top tier, it doesn't replace it. The lender's mandate says which draws need one.

  • Slow costs the builder

    A held draw holds up payroll and subcontractors. The target is a decision within 24 hours, and “needs review” stays rare and fast.

  • The money stays put

    The draw is the lender's to release. Teleport never holds, moves or touches it. It sends a signed decision the lender's own system acts on.

§ 07

A decision the lender can release money on.

The lender's system doesn't need to trust Teleport's word. It gets a signed decision and a proof anyone can check: what was asked, how it was checked, and the scope of the answer.

Dollars pay the capturer. The draw itself never touches Teleport. Nobody needs $PORT to post a draw check or get paid for one.

PROOF OF PHYSICAL WORKclaim · example
VERIFIED

Task
Framing complete · draw 3 of 7
Requested by
Draw agent, for the lender
Performed by
Builder's photos + independent capturer
Evidence
Teleport capture: photos, GPS, time
Compared with
Draw 2 · accepted
Scope
Visible progress only · not code
Policy
construction-draw v1.2
Decision
Accepted
Paid
$35.00 to the capturer

STATUS: FINAL

The $48,000 draw: released by the lender's own system. Never held by Teleport.

Example receipt. Fictional lot; amounts illustrative.
§ 08

For builders.

A VERIFY_ONLY task for the builder's photos. When they're not enough, a linked MARKETPLACE capture with relations.verifiesTaskId. Where the evidence came from decides the assurance.

PhysicalTaskSpec · draw 3TAP v0.2 · preview, subject to change
{
  "schema": "teleport.tap.physical-task",
  "version": "0.2.0",
  "title": "Verify framing complete — Lot 7, Quarry Ln (draw 3 of 7)",
  "category": "VERIFY",
  "requester": {
    "requesterType": "AI_AGENT",
    "principal": { "principalType": "ORGANIZATION" },
    "mandateId": "mdt_lender_draw_verify_v2"
  },
  "trigger": { "type": "EXTERNAL_WEBHOOK", "sourceRef": "los:draw_request:8812-3" },
  "fulfillment": {
    "mode": "VERIFY_ONLY",
    "verifyOnly": {
      "submitter": "PERFORMER",
      "acceptedEvidenceOrigins": ["TELEPORT_CAPTURE", "THIRD_PARTY_SUBMITTED"],
      "attestationRequired": true
    }
  },
  "relations": {
    "workflowId": "wf_loan_8812_construction",
    "followUpOf": "task_loan_8812_draw2"
  },
  "completionConditions": [
    { "type": "LOCATION", "id": "on_parcel", "zoneRef": "parcel:lot_7_quarry_ln",
      "relation": "IN", "verificationMethod": "DETERMINISTIC" },
    { "type": "SEMANTIC", "id": "framing_visible",
      "question": "Are all exterior walls framed and roof trusses installed per plan sheet A-2?",
      "verificationMethod": "JEV", "minimumEvidenceOrigin": "TELEPORT_CAPTURE" },
    { "type": "CUSTOM", "id": "progress_monotonic", "namespace": "teleport.construction",
      "config": { "compareTo": "task_loan_8812_draw2", "requireNewWork": true },
      "verificationMethod": "COMPOSITE" }
  ],
  "verificationPolicy": { "policyId": "construction-draw-v1", "version": "1.2" },
  "rightsPolicy": { "policyId": "lender-internal-use-v1" },
  "economics": {
    "buyerPriceUsdCents": 7500,
    "settlementAssets": ["FIAT"],
    "requesterPayment": { "method": "INVOICE" }
  },
  "popw": { "required": true, "assurancePolicyId": "VERIFIED", "proofTiming": "WORKFLOW" },
  "metadata": { "drawAmountUsdCents": 4800000, "verificationScope": "VISUAL_PROGRESS_ONLY" }
}

Proposed additions this use case surfaced

Verification scope
A required statement of what an accepted proof asserts and what it doesn't, hashed into the proof and shown on its page. Essential once outside money depends on one.
Progress across a workflow
A standard way to say “this task's state must go beyond task X's”, so a series of draws can't be paid twice with the same evidence.
Site safety
An addition to site consent: boundary only, escorted or free access, required protective gear, hours. Checked before anyone is matched.
Outcome webhooks
A signed “task accepted” event, with the claim and its assurance, that a lender, insurer or escrow agent can safely release its own funds on.
Licensed capabilities
Capabilities backed by a checked licence (issuer, number, expiry), not self-declared. Needed for inspectors, electricians and similar trades.

Example economics: $75 to the lender per verified draw; $35 of it to the independent capturer, paid on accept. The rest covers verification, review and the proof. The draw amount is metadata only. Developer docs

Lenders and fund controllers

Releasing money on a builder's photos?

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