Transaction Science
fdc9cf6ab0
ingest wave C: 3 crates · op-statements + smart-byte-activitypub + eoc-observability
OpenPay (1 crate, ~2940 LOC, 40 tests)
op-statements Statement generation + reconciliation + fee accounting.
Render targets: PDF (template), CSV, JSON, 94-char
NACHA fixed-width. ISO 20022 camt.053 with full
BkToCstmrStmt envelope (GrpHdr/Stmt/Bal/Ntry). BAI2
with 01/02/03/16/49/98/99 records. MT940/MT942
SWIFT with :20:/:25:/:28C:/:60F:/:61:/:86:/:62F:
+ :90C:/:90D: counters. FeeBucket (interchange/scheme/
acquirer/fx/settlement-network/bnpl) + FeeSchedule
with bps + flat rules. Cadence (daily/weekly/monthly/
custom). Two-tier Reconciler (external_id → window
heuristic).
Smart Byte (1 crate, 3032 LOC, 39 tests)
smart-byte-activitypub ActivityPub W3C Rec (2018). AS2 vocab + Public
addressing; Actor (Person/Application/Group/
Organization/Service) with publicKey + shared-inbox;
Object (Note/Article/Image/Video/Tombstone) with
Mastodon extensions (sensitive, CW summary,
conversation, blurhash); 12 Activity types
(Create/Update/Delete/Follow/Accept/Reject/Announce/
Like/Undo/Move/Block/Flag) with side-effect rules;
OrderedCollection + Page; Webfinger (RFC 7033);
HTTP Signatures (cavage draft-12 + RFC 9421);
SHA-256 Digest; Ed25519 sign/verify.
EOC (1 crate, 2759 LOC, 20 tests)
eoc-observability OpenTelemetry-compatible tracing + metrics + logs.
W3C tracecontext + baggage. Span / SpanKind / Status.
Samplers: AlwaysOn/Off/RatioBased/ParentBased. Sync
BatchSpanProcessor + Exporter trait. Counter / Gauge /
Histogram. Prometheus text exposition (HELP/TYPE/
_bucket/_sum/_count/+Inf). StatsD / DogStatsD lines.
GenAI semconv (gen_ai.{operation,system,request.*,
response.*,usage.*}) + EOC extensions (eoc.joules.*,
eoc.co2e_grams, eoc.cost.usd). USD + gCO2e attribution
with PUE. LangSmith + LangFuse export adapters.
Co-Authored-By: Claude Opus 4.7 <[email protected]>
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2026-05-24 13:51:09 -04:00 |