Skip to content
The first medical-grade Health DePIN on BNB Chain

Powered by revenue,not promises.

50,000 diagnostic devices and 5,000 veterinary clinics already generate verified health data. SL adds the economy on top.

SL Watch is a wellness product, not a medical device, and cannot determine the presence of disease.

SL Watch with ECG on wrist
ECG 125 Hz
$SL
1 read = 1 credit
Built on
DIGIRAY
Gachon University
Seoul Nat'l Univ. Hospital
opBNB · BNB Chain
QuillAudits

[01]The Four Minutes

Four minutes. After cardiac arrest, brain damage begins in about four minutes.

And when it happens with no one watching — an elderly parent at dawn, an empty living room in the afternoon — those four minutes are usually empty.

A mother who lives alone, at dawn
A mother who lives alone. 3 a.m.
A twelve-year-old dog who hides the pain
A twelve-year-old dog who hides the pain.
Last year's check-up, asleep in a drawer
Last year's check-up, asleep in a drawer.

Golden time is decided before the ambulance arrives. So we build the network outside the hospital.

[02]Proof

50,000+
CR scanners deployed
DIGIRAY
5,000
veterinary clinics
DIGIRAY
204,000+
ECG segments · AUROC 0.88
Gachon–SNUH research
Gov R&D
validated
operated by DIGIRAY

We only put numbers on the wall that can be verified. Parent-company traction is labeled as parent-company traction.

[03]Business

We put the token on top of a business that already runs without it.

Hardware
funded by the manufacturer
Research
funded by government R&D
Operations
funded by B2B revenue

Token capital funds none of the above. $SL works only as a service credit.

Medical imaging devices

“Consumer wearables guess. Medical devices know.”

Wellness DePINSL
Sensor gradeconsumer PPGmedical-grade ECG
Hardware fundingtoken / VC capitalmanufacturer revenue
Data buyer"someday"government, today

[04]The Protocol

One protocol.
Three functions. Four networks.

We don't extract hospital data. Our devices generate it.

Verifymedical-grade signals
Settleevery AI fee in one credit
Recycle10% of fees through the protocol
Top
AI services · Institutional demand
SL Protocol
VerifySettleRecycle
Devices
SL Watch · CR scanners

[05]Products

Not a portfolio. Four networks on one protocol.

VetDental AI
#1 · Revenue Engine · Credit Sink
VetDental AI

AI reads for 5,000 clinics — $0.1 per read

View
MediReport
#2 · Revenue Engine · Data Source
MediReport

LLM reports for health screening centers

View
SL Watch
#3 · Data Source · Credit Sink
SL Watch

Medical-grade ECG — AUROC 0.88 in clinical research

View
Institutional Data
#4 · External Validation
Institutional Data

Where the first data buyer is already real (gov-funded, DIGIRAY)

Overview soon

[06]Live Apps

Not a roadmap. Apps you can open today.

Real products from the SL ecosystem, already shipping — on the app stores, inside messengers, and on the web.

Smartwatch App · Android / iOS
HealthFi

Measure and track heart rate, blood pressure and ECG with a connected smartwatch — with guardian alerts and reward points.

Veterinary Dental AI · Web
Pet Tooth AI

AI-assisted dental X-ray reads for veterinarians — evidence boxes on every finding, reports in seconds. Operated by DIGIRAY.

Ambassador Hub · Web
Thor

The official SL Labs ambassador hub — check-ins, missions and referrals, with live rankings and an opBNB wallet in five languages.

Mini Dapp · LINE / Unifi
Lucky Dice

A casual Web3 board game — roll dice, run missions and climb the season ranking. Runs inside LINE with nothing to install.

Learning Game · Toss Mini App
Health Hero

A first-aid and health quiz game running inside the Toss app — and every answer, right or wrong, comes with an explanation.

Details → Search ‘헬스히어로’ in Toss

HealthFi data is for health management and reference purposes and does not replace medical diagnosis or treatment.

[07]One Credit Economy

Daily reads =
daily demand.

Every AI service across four networks settles in one credit. A day's reads are that day's credit demand — and we publish it on-chain.

① Service usedAI
② Credit consumed$SL
③ 10% fee → protocol10%
④ WCS accrues → reuseWCS

[08]Token

$SL · opBNB (BNB Chain L2)

The settlement credit for verified health AI.

No re-issuance. No swap. Fixed 2,000,000,000.

Issued on opBNB — BNB Chain's Layer-2, chosen for low gas fees on high-frequency inference settlement.

9.6%
TGE circulating
~1.6%
Real sellable at TGE
12+36 mo
Team cliff + linear
18 mo
VC cliff
  • Quarterly circulation disclosure · third-party verified (e.g. Xangle)
  • Live cliff & vesting dashboard
  • Smart contracts audited by QuillAudits — all findings resolved · Report ↗
Abstract credit network visualization

This page is not investment advice. $SL is a functional credit for accessing ecosystem AI services. Digital assets can lose value due to price volatility. Korean residents cannot participate in WCS→SL conversion or token sales.

ECG research visualization

[09]Research & Validation

We publish our model cards.

A 4-year joint study with Gachon University and Seoul National University Hospital. 204,000+ ECG segments. AUROC 0.88 (clinical research). KFDA SaMD certification in progress.

Until certification, we say only "screening support" — never "diagnosis." That discipline is our brand.

Model Cards Publications KFDA SaMD Roadmap

SL Watch's wellness features are not a medical device and cannot determine the presence of disease. If an abnormal signal is detected, consult a licensed medical professional. Medical-device functions will be offered after KFDA clearance.

[10]Foundation

We ship discipline before product.

Entity separation

DIGIRAY (manufacturing · gov R&D) ↔ SL Labs (Singapore · token issuance) — funds and data do not cross.

WCS–token separation

WCS is a non-transferable, non-redeemable contribution score. Conversion is disabled for Korea/US by IP + KYC.

Verification nodes

Foundation-operated at launch, opened progressively — stated honestly, not hidden.

Fixed supply · disclosure

Fixed 2B · quarterly disclosure · third-party verification · DAXA criteria met pre-listing.

Smart contract audit

SLToken & SLVesting audited by QuillAudits (Aug 2026) — 0 critical, all 8 findings resolved, with formal verification. Read the report ↗

[11]Roadmap

Roadmap — Proof by Proof

Each stage stands on the last stage's on-chain evidence.

Stage 0 · Done

Supply exists: 50,000 scanners, 5,000 clinics, 4-yr research.

2026

First on-chain demand: TGE, VetDental AI live, Watch (wellness), KFDA filing.

2027

Human medicine: AI 0.85+, insurers, KFDA clearance unlocks device functions.

2027 H2–2028

Data-buyer pipeline: insurer → pharma/AI. Node network opens.

Domestic listing: not avoidance, but a prepared listing that first meets DAXA's four criteria and quarterly disclosure.

We're looking for 1,000 First Guardians.

Not airdrop farmers — people who actually wear the device and validate it.

Apply to be a Guardian
Partner with the Networks

Hospitals · veterinary clinics · screening centers · insurers

partners@savethelife.io