Inherited Sciences™
The Carbon Broker
A mobile broker desk for verified carbon credits — sourced, matched, and settled on Flare with evidence-grade profit.
Flare Summer Signal × DoraHacks Track: Interoperable Asset Products Deployed: Coston2
Submission at a glance
What we are looking at
Product
Brokerage dApp that turns fragmented carbon-credit deals into one auditable, profitable flow: source → attest → match → escrow → settle → book P&L.
Target user
Carbon brokers and aggregators (Inherited Sciences™ first), plus the sellers and corporate buyers on either side of each deal.
How it uses Flare
FTSOv2 pricing, FDC JsonApi proofs of Verra / Gold Standard, FDC Payment proofs of XRPL, FAssets FXRP settlement, escrow + atomic swap contracts.
Newly built
Mobile broker app, six end-to-end deal scenarios, tokenized-credit marketplace, and the FXRP cross-chain settlement path.
Contracts
BrokerEscrow.sol
ForwardOfftake.sol
CarbonToken (ERC-1155)
RetirementCert (ERC-721)
Roadmap
Live registry APIs → Songbird pilot with partner sellers → mainnet + institutional buyer onboarding.
Architecture · adapted from the Inherited Sciences™ 4-layer framework
The Carbon Broker Stack
L4
Governance & Deal Legacy
Deal smart contracts · multi-sig treasury custody · automated fee & pro-rata distribution · auditable deal history
L3
Broker Engine
Matching & spread engine · seller aggregation · inventory book & risk · quoting in FLR / FXRP
L2
Data & Oracles
FTSOv2 feeds (FLR, XRP) · FDC JsonApi attestations of Verra & Gold Standard · FDC Payment proofs · IPFS project docs
L1
Foundation & Trust
Flare EVM (Coston2) · FAssets (FXRP) · state-connector-proven XRPL settlement · BrokerEscrow.sol
SCENARIO 01
Spot brokered buy
GhanaBlue Ltd ($12.40/t) → IS™ Broker → Aureon Logistics ($14.10/t) · VCS-1739 · 500 tCO₂e
1 · Credits sourced
VCS-1739-2024-GH
2 · FDC attestation
0x8f2c…a41d · JsonApi
3 · Buyer matched
ORDER-2291 · signed
4 · FTSO price locked
$0.03421 · epoch 918,442
5 · Escrow funded
206,140 FLR locked
6 · Atomic settlement
tx 0xc7d1…e83f
DEAL P&L
Sell · 500 t × $14.10$7,050.00
Buy · 500 t × $12.40−$6,200.00
Gas + FDC fees−$3.12
Net broker spread+$846.88
FTSOv2FDC JsonApiEscrow
SCENARIO 02
Upstream aggregation match
TidalRoots 300t + KijaniGrid 450t + AndeanPeat 250t (pre-issuance fwd) → IS™ → Meridian Steel · 1,000 tCO₂e block
1 · Sellers aggregated
3 lots → 1 block
2 · Pre-issuance forward
FWD-0231 · $10.10/t
3 · FDC attestations ×3
0x77aa…10ce · batch
4 · Block tokenized
CCT-BLK-07 · ERC-1155
5 · Buyer + FTSO lock
$0.03425 · epoch 923,118
6 · Pro-rata settlement
tx 0x1e9b…77d2
DEAL P&L
Sell · 1,000 t × $13.20$13,200.00
Buy · 3 sellers blended−$11,105.00
Gas + FDC fees−$5.40
Net aggregation spread+$2,089.60
FDC ×3ERC-1155FTSOv2
SCENARIO 03
Tokenized credit resale
IS book (350 t @ $10.80 wholesale) → tokenized CCT-1739 → retail buyers ×3 @ avg $14.75 · listings marketplace
1 · Wholesale block bought
350 t · $10.80/t
2 · Credits tokenized
CCT-1739 · ERC-1155
3 · Listed on marketplace
LIST-0092 · ask $14.90
4 · FTSO pricing feed
quotes in FLR live
5 · Retail fills ×3
350 t cleared
6 · Proceeds settled
tx 0xa30f…c651
DEAL P&L
Retail · 350 t × $14.75$5,162.50
Wholesale · 350 t × $10.80−$3,780.00
Gas + marketplace fees−$4.15
Net inventory spread · 36.5%+$1,378.35
ERC-1155MarketplaceFTSOv2
SCENARIO 04 · TRACK HEADLINE
Cross-chain FXRP settlement
Ryujin Shipping pays 2,527 XRP on XRPL → FDC Payment proof → FAssets mints FXRP → atomic settlement on Flare · 400 tCO₂e
1 · Quote in XRP
FTSO XRP/USD $2.20
2 · Buyer pays on XRPL
XRPL tx A4C9…F210
3 · FDC Payment proof
0x3fb8…90e7
4 · FXRP minted
2,527 FXRP via agent
5 · Escrow in FXRP
BrokerEscrow.sol
6 · Atomic settlement
tx 0xbb02…41cd
DEAL P&L
Sell · 400 t × $13.90 (XRP)$5,560.00
Buy · 400 t × $12.30−$4,920.00
Gas + FAssets + FDC fees−$6.20
Net spread · held in FXRP+$633.80
FAssetsFDC PaymentXRPL
SCENARIO 05
Forward offtake · tranche 1
Sunbird Energy ($11.75/t locked) → IS™ → Helvion Group ($13.05/t locked) · GS-2211 · 2,000 tCO₂e / 4 tranches
1 · Offtake terms agreed
TERMS-0117
2 · Forward deployed
ForwardOfftake.sol
3 · FDC issuance proof
0x2b77…c9d0
4 · Tranche 1 delivered
GS-2211-T1 · 500 t
5 · FTSO settlement rate
epoch 921,006
6 · Tranche 1 settled
tx 0x5efa…1b27
DEAL P&L
Revenue · 500 t × $13.05$6,525.00
Cost · 500 t × $11.75−$5,875.00
Gas + FDC fees−$2.87
Net · tranche 1 of 4+$647.13
Projected across all four tranches: +$2,588.52
SCENARIO 06
Retirement & certificate
Aureon Logistics retires 150 tCO₂e against its FY26 target · Verra Web2 API → FDC proof → ERC-721 certificate
1 · Retirement order
RET-0088
2 · Registry executed
VCS-RET-77120
3 · FDC proof
0x6d19…f2c4
4 · Certificate minted
CERT #0042 · ERC-721
5 · Fee settled in FLR
3,946 FLR
6 · Fee booked
recurring revenue
DEAL P&L
Fee · 150 t × $0.90$135.00
Gas + FDC fees−$1.04
Net fee revenue+$133.96
FDC JsonApiERC-721
A profitable book, end to end
+$5,729.72 net across six settled scenarios
01 · Spot brokered buy
+$846.88
02 · Upstream aggregation
+$2,089.60
03 · Tokenized resale
+$1,378.35
04 · Cross-chain FXRP
+$633.80
05 · Forward offtake T1
+$647.13
06 · Retirement fee
+$133.96
Next: live registry APIs → Songbird pilot → mainnet with institutional buyers. Inherited Sciences™ · The Carbon Broker.