A
Mint Cuba Bitcoin
https://mint.cubabitcoin.org
Nutshell 0.22.1sat · fee 100 ppkkeyset 00cadd580ab9…
Every check passed
27 checks passed.
Passed 27
Keys4 passed
| All public keys are valid curve points | NUT-01 | 128 keys across 2 keysets |
| Every amount has its own key | NUT-01 | No key is reused across amounts or keysets |
| Keyset IDs match their keys | NUT-02 | 2 keyset ID(s) re-derived and matched |
| At least one active keyset | NUT-02 | sat: 00cadd580ab9… fee 100 ppk, usd: 0152756e4ebe… fee 100 ppk |
Forgery1 passed
| Rejects forged ecash | NUT-03 | Forged proof refused (10001) |
Info3 passed
| Mint is served over HTTPS | — | HTTPS in use |
| Info endpoint is well formed | NUT-06 | 'Mint Cuba Bitcoin' running Nutshell/0.22.1 |
| Claimed NUT endpoints respond | NUT-06 | Every probed claim answered |
DLEQ3 passed
| DLEQ proofs valid on mint | NUT-12 | 7 DLEQ proof(s) verified |
| DLEQ proofs valid on swap | NUT-12 | 5 DLEQ proof(s) verified |
| DLEQ proofs valid on melt_change | NUT-12 | 4 DLEQ proof(s) verified |
Issuing2 passed
| Paid quote issues the full amount | NUT-04 | Paid 64, received 64 in 7 signatures |
| Quote cannot be minted twice | NUT-04 | Second mint on the same quote refused (20002) |
Spending5 passed
| Rejects outputs worth more than inputs | NUT-03 | Swap creating 1 sat out of nothing refused (11000) |
| Swap at the advertised fee succeeds | NUT-02 | 1 inputs, 100 ppk → 1 sat fee, accepted |
| Rejects double spends | NUT-03 | Re-spending used proofs refused (11001) |
| Rejects the same proof twice in one request | NUT-03 | Duplicated input refused (11007) |
| Spent proofs are reported as spent | NUT-07 | All spent proofs report SPENT |
Locks7 passed
| P2PK lock enforced | NUT-11 | Refused: no signature, empty witness, signature from the wrong key; accepted: signature from the locking key |
| P2PK 2-of-2 multisig enforced | NUT-11 | Refused: 1 of 2 signatures, the same key signing twice; accepted: 2 of 2 signatures |
| Refund key blocked before locktime | NUT-11 | Refused: refund key before locktime; accepted: locking key |
| Refund key works after locktime | NUT-11 | Refund key spent the expired lock |
| Malformed lock (duplicate tag) rejected | NUT-11 | Refused: valid signature on a secret with two locktime tags |
| HTLC hash lock enforced | NUT-14 | Refused: no preimage, wrong preimage; accepted: correct preimage |
| HTLC receiver signature enforced | NUT-14 | Refused: preimage without the receiver's signature, preimage with the wrong signature; accepted: preimage and receiver signature |
Payouts2 passed
| Melt pays the invoice | NUT-05 | Melt state: PAID (fee_reserve 0) |
| Overpaid fees are returned | NUT-08 | Overpaid by 15 sat (internal payment, no Lightning fee); 15 sat returned as change |