KD5UJC-XYZ

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• Preserve governor root invariants across DNS address refresh

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  Difficulty 4/5 3-5 days Newbie friendliness 38/100

  KD5UJC-XYZ/scarab#240 · Opened Oct 19, 2026

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• [AUD2-11] LogRouter's single global sink lock: measure, then fix or document

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  Difficulty 4/5 3-5 days Newbie friendliness 42/100

  KD5UJC-XYZ/scarab#233 · Opened Oct 19, 2026

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• [AUD2-08] Index the 213 mutable-state clusters against their performance justifications

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  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  KD5UJC-XYZ/scarab#232 · Opened Oct 19, 2026

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• [AUD2-16] Record the RocksDB-vs-LMDB choice for the UTxO store

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  area:scale audit priority:P2

  Difficulty 2/5 1-3 hours Newbie friendliness 76/100

  KD5UJC-XYZ/scarab#231 · Opened Oct 19, 2026

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• [AUD2-15] Crypto review of the hand-ported Java math: schedule, document constant-time posture

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  Difficulty 4/5 3-5 days Newbie friendliness 45/100

  KD5UJC-XYZ/scarab#230 · Opened Oct 19, 2026

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• [AUD2-14] Make the committed libblst.so reproducible: CI build-and-compare job

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  Difficulty 3/5 1-2 days Newbie friendliness 72/100

  KD5UJC-XYZ/scarab#229 · Opened Oct 19, 2026

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• [AUD2-06] Mark the Leios read-only decoders and tools as research scaffolding

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  area:leios audit priority:P2

  Difficulty 2/5 1-3 hours Newbie friendliness 82/100

  KD5UJC-XYZ/scarab#228 · Opened Oct 19, 2026

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• [AUD2-24] Make run evidence publicly re-inspectable (fold into K5/#52)

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  area:publication audit priority:P2

  Difficulty 3/5 1-2 days Newbie friendliness 70/100

  KD5UJC-XYZ/scarab#227 · Opened Oct 19, 2026

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• [AUD2-22] No performance regression guard in CI

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  Difficulty 3/5 1-2 days Newbie friendliness 48/100

  KD5UJC-XYZ/scarab#226 · Opened Oct 19, 2026

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• [AUD2-21] Adversarial testing posture: make the Antithesis-style decision explicit

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  Difficulty 2/5 1-3 hours Newbie friendliness 55/100

  KD5UJC-XYZ/scarab#224 · Opened Oct 19, 2026

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• [AUD2-02] Byron (PBFT) block production: record the decision

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  area:byron audit priority:P1

  Difficulty 2/5 1-3 hours Newbie friendliness 72/100

  KD5UJC-XYZ/scarab#223 · Opened Oct 19, 2026

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• [AUD2-01] CLI parity register: decide implement/track/documented-reason for every upstream `cardano-node run` option

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  Difficulty 3/5 1-2 days Newbie friendliness 72/100

  KD5UJC-XYZ/scarab#222 · Opened Oct 19, 2026

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• [AUD2-29] Mithril client TLS/trust path needs a dedicated review before mainnet bootstrap

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  area:fast-start audit priority:P2

  Difficulty 4/5 3-5 days Newbie friendliness 38/100

  KD5UJC-XYZ/scarab#221 · Opened Oct 19, 2026

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• [AUD2-27] The 'variable-time, public-inputs-only' crypto invariant is review-enforced, not tool-enforced

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  Difficulty 4/5 3-5 days Newbie friendliness 45/100

  KD5UJC-XYZ/scarab#219 · 1 comment · Opened Oct 19, 2026

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• [AUD2-31] Unused log4cats/log4s logging stack on the node runtime classpath

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  Difficulty 2/5 1-3 hours Newbie friendliness 82/100

  KD5UJC-XYZ/scarab#214 · Opened Oct 19, 2026

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• [I4 follow-up] Consider exact Haskell diagnostic wording for Plutus failures

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  area:plutus priority:P2 status:idea

  Difficulty 5/5 Over a week Newbie friendliness 25/100

  KD5UJC-XYZ/scarab#208 · Opened Oct 19, 2026

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• [AUD-17] Preserve field types in derived storage and legacy codecs

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  area:hygiene audit priority:P2 status:backlog

  Difficulty 5/5 Over a week Newbie friendliness 35/100

  KD5UJC-XYZ/scarab#205 · Opened Oct 19, 2026

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• [AUD-16] Make decode interning tables type-safe per kind

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  Difficulty 5/5 Over a week Newbie friendliness 25/100

  KD5UJC-XYZ/scarab#204 · Opened Oct 19, 2026

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• [AUD-13] Restore compiler checks for implicit and discarded values

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  Difficulty 4/5 3-5 days Newbie friendliness 44/100

  KD5UJC-XYZ/scarab#201 · 1 comment · Opened Oct 19, 2026

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• [AUD-12] Fuzz remaining persisted formats and JSON inputs

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  Difficulty 5/5 Over a week Newbie friendliness 38/100

  KD5UJC-XYZ/scarab#200 · Opened Oct 19, 2026

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• [AUD-11] Verify curve25519-elisabeth provenance and licence notices

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  Difficulty 5/5 Over a week Newbie friendliness 35/100

  KD5UJC-XYZ/scarab#199 · Opened Oct 19, 2026

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• [K3] Add valid whole-transaction fuzz seeds for Shelley, Allegra and Mary

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  Difficulty 4/5 3-5 days Newbie friendliness 48/100

  KD5UJC-XYZ/scarab#179 · Opened Oct 18, 2026

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• [N3] LeiosFetch wire changed upstream on 2026-10-16: MsgLeiosBlockTxs is [4, tx_list], transactions are tag 24

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  area:leios area:networking priority:P2 status:backlog

  Difficulty 5/5 Over a week Newbie friendliness 25/100

  KD5UJC-XYZ/scarab#174 · Opened Oct 17, 2026

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• [AUD-10] Monitoring agent: restrict Docker API access and host PID namespace

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  Difficulty 4/5 3-5 days Newbie friendliness 49/100

  KD5UJC-XYZ/scarab#162 · Opened Oct 17, 2026

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• [AUD-09] Enforce gates and branch protection on main once functional equivalence with cardano-node is reached

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  Difficulty 5/5 Over a week Newbie friendliness 15/100

  KD5UJC-XYZ/scarab#161 · 4 comments · Opened Oct 17, 2026

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• peercut: a lagging peer can be lost as 'diverged' instead of by the ChainSync timeout

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  Difficulty 4/5 3-5 days Newbie friendliness 38/100

  KD5UJC-XYZ/scarab#152 · 2 comments · Opened Oct 17, 2026

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• devnet down should delete the run directory; the host disk filled to 99% with finished scenario data

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  area:hygiene priority:P2 status:idea

  Difficulty 4/5 3-5 days Newbie friendliness 45/100

  KD5UJC-XYZ/scarab#151 · Opened Oct 17, 2026

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• [G1.2-f] Peer metrics from inbound sessions

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  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  KD5UJC-XYZ/scarab#150 · Opened Oct 17, 2026

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• [G1.2-f] Check the pick policies against the release cardano-node pins (promoteWeight)

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  Difficulty 4/5 3-5 days Newbie friendliness 43/100

  KD5UJC-XYZ/scarab#149 · Opened Oct 17, 2026

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• [G1.2-f] BlockFetch peer priorities and concurrency limits of the reference

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  Difficulty 5/5 Over a week Newbie friendliness 35/100

  KD5UJC-XYZ/scarab#148 · Opened Oct 17, 2026

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• Predicate failures not raised by any rule: PoolMedataHashTooBig and OutputBootAddrAttrsTooBig

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  area:node-to-client priority:P2 status:idea

  Difficulty 4/5 3-5 days Newbie friendliness 42/100

  KD5UJC-XYZ/scarab#141 · Opened Oct 17, 2026

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• Start from genesis directly in the mirror state, without the flat GenesisState and Mirroring.toMirror

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  Difficulty 5/5 Over a week Newbie friendliness 35/100

  KD5UJC-XYZ/scarab#134 · 1 comment · Opened Oct 17, 2026

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• [J3.1] The live mirror has no place for the gaps: a node on the new rules writes a constant set in the snapshot sidecar

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  Difficulty 5/5 Over a week Newbie friendliness 35/100

  KD5UJC-XYZ/scarab#129 · 1 comment · Opened Oct 17, 2026

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• [J2.8] A snapshot the old rules wrote in the Shelley era of a Byron-start chain, before Allegra, has no stash of the redeem outputs

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  Difficulty 4/5 3-5 days Newbie friendliness 48/100

  KD5UJC-XYZ/scarab#128 · 1 comment · Opened Oct 17, 2026

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• NtC: ContextError and the certifying purposes of the failure encodings, and a reference check of the pre-Conway ones

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  Difficulty 5/5 Over a week Newbie friendliness 25/100

  KD5UJC-XYZ/scarab#123 · Opened Oct 17, 2026

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• [H2a] kes-rotate: kill the node between the link switch and the reload, and refuse a reload on purpose

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  area:block-production priority:P2 status:idea

  Difficulty 4/5 3-5 days Newbie friendliness 45/100

  KD5UJC-XYZ/scarab#122 · 1 comment · Opened Oct 17, 2026

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• [H2b] Mainnet pool: cold key offline, rotation asks the operator to approve

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  area:block-production priority:P2 status:idea

  Difficulty 5/5 Over a week Newbie friendliness 25/100

  KD5UJC-XYZ/scarab#120 · 1 comment · Opened Oct 17, 2026

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• Era history after a restart past a version-triggered hard fork differs from the reference

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  Difficulty 4/5 3-5 days Newbie friendliness 48/100

  KD5UJC-XYZ/scarab#119 · 1 comment · Opened Oct 17, 2026

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• ntc gate: run the real cardano-cli against a chain older than 213 days and one that starts in Byron

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  Difficulty 4/5 3-5 days Newbie friendliness 42/100

  KD5UJC-XYZ/scarab#118 · Opened Oct 17, 2026

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• [H1a] Test-network pool: forging, dry run, first block

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  area:block-production priority:P1 status:in-progress

  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  KD5UJC-XYZ/scarab#115 · 6 comments · Opened Oct 17, 2026

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• Library (SLF4J) log lines default to Info

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  area:ops priority:P2 status:idea

  Difficulty 2/5 1-3 hours Newbie friendliness 78/100

  KD5UJC-XYZ/scarab#112 · Opened Oct 17, 2026

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• Finish credential sharing on decode (follow-ups to #94)

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  area:scale priority:P2 status:idea

  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  KD5UJC-XYZ/scarab#97 · Opened Oct 17, 2026

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• Credential ordering builds a hex string per comparison

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  Difficulty 4/5 3-5 days Newbie friendliness 48/100

  KD5UJC-XYZ/scarab#96 · Opened Oct 17, 2026

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• devnet e2e --oracle: an epoch-boundary dump taken just before a one-block fork is compared against the wrong state

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  Difficulty 3/5 Half a day Newbie friendliness 66/100

  KD5UJC-XYZ/scarab#91 · Opened Oct 16, 2026

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• [M14] Adopt the generated models in the node (coordinate with #85)

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  Difficulty 5/5 Over a week Newbie friendliness 12/100

  KD5UJC-XYZ/scarab#87 · Opened Oct 15, 2026

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• [M13] CDDL generator gaps

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  Difficulty 5/5 Over a week Newbie friendliness 12/100

  KD5UJC-XYZ/scarab#86 · Opened Oct 15, 2026

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• [M12] Era-indexed consensus: typed headers, era translations and queries (Haskell mirror step 3)

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  Difficulty 5/5 Over a week Newbie friendliness 6/100

  KD5UJC-XYZ/scarab#85 · 3 comments · Opened Oct 15, 2026

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• [N5] Leios-grade mempool: 12 MB capacity and per-transaction validation latency

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  area:leios help wanted priority:P1 status:backlog

  Difficulty 5/5 Over a week Newbie friendliness 12/100

  KD5UJC-XYZ/scarab#79 · 2 comments · Opened Oct 14, 2026

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• [O3] Operator packaging: container image, compose and Kubernetes manifests

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  Difficulty 4/5 3-5 days Newbie friendliness 30/100

  KD5UJC-XYZ/scarab#76 · Opened Oct 14, 2026

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• [O2] Reproducible, signed releases with SBOM and published images

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  area:ecosystem help wanted priority:P1 status:backlog

  Difficulty 4/5 3-5 days Newbie friendliness 30/100

  KD5UJC-XYZ/scarab#75 · 2 comments · Opened Oct 14, 2026

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