Buyer opens and funds a fixed compute job escrow
The CC3 job fixes the provider, reward, required energy, and settlement deadline. It must exist before the allocation commitment can be created.
Mechanism
Settlement must see the allocation it pays for.
WattLock turns a certificate reservation into a narrow cross-chain authorization. The source creates the lock. Attestcoin proves it. CC3 pays only after every bound field matches.
The exact mechanism
OPEN + FUND → RESERVE → PROVE → LOCK → SETTLE → BLOCK → VERIFY
Each step exists to close one failure mode. No administrator selects a winner. No UI assertion releases the escrow.
CertificateTerminal reservation
ProofNative verification
EscrowFixed provider payout
ReuseNamed refusal
A job moves through five checks
One allocation can settle one exact job.
Certificate owner reserves that exact allocation
DemoCertificateIssuer emits one CertificateReserved event. It binds a certificate ID, job ID, allocation hash, owner, energy amount, expiry, and source chain.
The source receipt becomes verifiable settlement input
settleWithProof pins the source to Sepolia Attestcoin key 1, then invokes native proof verification.
The receipt must describe this exact allocation
The contract validates the issuer, event shape, transaction success, certificate owner, energy, expiry, allocation hash, and job status. One mismatch reverts.
Escrow pays once or the certificate is refused
The provider receives the fixed test-CTC escrow atomically. A reused source certificate fails with CertificateAlreadyReserved().
What the hash binds
Certificate, job, buyer, provider, reward, energy, deadline, CC3 chain, and WattLock contract.
It is not a reusable allocation credential.
What is intentionally absent
No token, marketplace, fractional allocation, hardware oracle, or carbon accounting layer.
Version one proves the one-certificate, one-job gate first.