BNB Testnet Deployments

Deployed contract addresses + verification links. Testnet only today — mainnet is gated on Sprint C.7 (audit + legal).

Chain

• Network: BNB Smart Chain Testnet (chain ID 97)
• RPC: https://data-seed-prebsc-1-s1.binance.org:8545
• Explorer: https://testnet.bscscan.com

Contracts

Replace 0xDEPLOYED_ADDRESS_PENDING with real addresses after the final deploy run below. Run is intentionally deferred until immediately before submission so the demo attestation counter doesn't drift.

Deploy command

cd packages/contracts

forge script script/DeployAll.s.sol \
  --rpc-url https://data-seed-prebsc-1-s1.binance.org:8545 \
  --private-key $DEPLOYER_PRIVATE_KEY \
  --broadcast \
  --verify \
  --etherscan-api-key $BSCSCAN_API_KEY \
  -vvv

Post-deploy:

1. Copy the four contract addresses from the broadcast/ log.
2. Update this file with the verified BscScan links.
3. Update apps/api/.env on Railway with HATCH_ATTEST_ADDRESS.
4. Publish a sample attestation via POST /v1/score/:id/publish.
5. Link the sample tx in the submission description.

First attestation (to publish before submission)

The submission must link to at least one real on-chain attestation to close the "is this actually live?" question. We ship a one-shot script (src/scripts/publish-first-attestation.ts) that generates a synthetic all-live score and publishes it against the deployed contract — no scoring pipeline or Bitquery/GoPlus keys required.

BSC_RPC_URL=https://data-seed-prebsc-1-s1.binance.org:8545 \
BSC_CHAIN_ID=97 \
HATCH_ATTEST_ADDRESS=0x<deployed> \
ATTESTER_PRIVATE_KEY=0x<funded 32-byte hex> \
pnpm --filter @hatch/api exec tsx src/scripts/publish-first-attestation.ts

Expected output:

✅ Attestation published.
   attestationId: 0x…
   txHash:        0x…
   digest:        0x…

   https://testnet.bscscan.com/tx/0x…

Paste the BscScan URL into:

• README.md (badge + "live attestation" section)
• Submission description + HACKATHON-PITCH.md

Idempotent: re-running the script returns the same attestation because the publisher dedupes on the canonical digest. You only pay gas the first time.

Mainnet deploy (gated)

Not yet. Blocked on:

• Sprint C.6 — audit complete (OZ / Hacken / ToB)
• Sprint I.5 — legal opinion
• Multisig deployer (not an EOA)
• DeployAll dry-run against production params
• Four.meme Agent Wallet API access (Dep.3.1)

When all four tick, mainnet instructions land in mainnet.md.

Verification checklist

After deployment:

• BscScan shows "Verified" on every contract
• HatchRegistry.attester() returns the hot-wallet address
• HatchNest.perTokenCap() returns > 0
• HatchNest.dailyCap() returns > 0
• HatchAttest.attest() succeeds with a sample payload
• Hatcher.mint() is permissioned (only HatchRegistry.admin)