[no description] https://upleb.uk/npub12m5exm2uk3xa674cc5r0hlyvccs5xxn7qv83ezuteefv5972nquq4j4szl/esp32-tollgate/atom?h=master 2026-05-16T18:25:05+00:00 2026-05-16T18:25:05+00:00 Your Name you@example.com 2026-05-16T18:25:05+00:00 urn:sha1:4c47ae188b288e7d24bd9566ab3e6a6805d9484f - Add identity.c/h: HMAC-SHA512 derivation from nsec → npub, STA/AP MAC, SSID, AP IP - Add nostr_event.c/h: NIP-01 event serialization + Schnorr signing (BIP-340) - Add geohash.c/h: lat/lon to geohash encoding - Add wifistr.c/h: kind 38787 event builder + WebSocket publish to Nostr relays - Update config.c/h: nsec-based identity, Nostr relay/geo config, remove static SSID/IP - Replace custom mbedTLS wallet with nucula library (libsecp256k1) - Remove wallet.c/h, wallet_persist.c/h (replaced by nucula_lib component) - Verified on Board A: derived SSID, captive portal, payment, wallet, wifistr publish 2026-05-16T10:02:55+00:00 Your Name you@example.com 2026-05-16T10:02:55+00:00 urn:sha1:133e40c82afb4d7659758b1fa57925ac57af4621 - wallet.c/h: secp256k1 ECP primitives (hash_to_curve, scalar_mul, point_add) - wallet_persist.c/h: SPIFFS persistence with threshold-based write protection - Fee accounting for swap (input_fee_ppk from /v1/keysets) - Keyset fetch via /v1/keysets (586 bytes vs 21KB for /v1/keys) - Wallet API: GET /wallet, POST /wallet/swap, POST /wallet/send - Payment proofs auto-stored to wallet + persisted on SPIFFS - PSRAM enabled for large allocations (ESP32-S3 has 8MB) - Wallet init deferred to dedicated task (avoids sys_evt stack overflow) - Cashu proof ID buffer size fixed (66 hex chars, not 16) - HTTP client: added fetch_headers() call for proper response handling - persist_threshold_sats config parameter (default: 1 sat)