October 2026 Perth BitDevs

[deadmanoz]

Perth BitDevs/Bitcoin Meetup is (almost) always held on the first Thursday of each month

When: 6pm Thursday 1st October 2026
Where: TBD (see README schedule — venue TBD)

[deadmanoz]

Post-quantum / migration

PQLN: Post-Quantum Security for the Bitcoin Lightning Network's Off-Chain Surfaces

https://delvingbitcoin.org/t/pqln-post-quantum-security-for-the-bitcoin-lightning-networks-off-chain-surfaces/2893

Hybrid PQ Lightning design with a rust-lightning implementation and measurements — concrete PQ work beyond base-layer signatures.

DropKick — minimal commit/reveal PQ rescue protocol (discussion)

https://gnusha.org/pi/bitcoindev/0521d915-8613-47ea-ad44-6eaeaa5a6ed0n@googlegroups.com/

Ongoing mailing-list review of a commit/reveal PQ rescue sketch; pairs well with other quantum-migration threads this week.

Standardizing public key exposure classification for existing outputs

https://gnusha.org/pi/bitcoindev/010001a0b418f0f2-92c7e013-aea0-4707-ab25-06beafce173a-000000@email.amazonses.com/

Informational BIP draft (v0.5.1, BIPs PR #2294) taxonomising long/short key exposure per output type — wallet / PQ migration framing.

Bitcoin's Quantum Migration Debate

https://blog.lopp.net/bitcoin-quantum-migration-debate/

Structured survey of both sides of migration trade-offs — good companion reading to the Delving / bitcoindev PQ items above.

[deadmanoz]

Protocol research

Depots: Theft-Proof, Self-Custodial Bitcoin For Billions Of Users

https://delvingbitcoin.org/t/depots-theft-proof-self-custodial-bitcoin-for-billions-of-users/2892

Scaling design with hard constraints on on-chain footprint and theft windows — useful frame for L2 / covenant discussions.

Bounds on chain length with BIP-54 timewarp fixes

https://delvingbitcoin.org/t/bounds-on-chain-length-with-bip-54-timewarp-fixes/2899

Checks whether BIP-54's proposed timestamp rules fully close known timewarp / retarget games.

EC OTS (onchain). Has anyone considered it?

https://delvingbitcoin.org/t/ec-ots-onchain-has-anyone-considered-it/2901

Explores Script-verifiable one-time / threshold-style attestation without CSFS — good Script / covenant deep-dive candidate.

[deadmanoz]

BIP-324 / P2P

[BIP Proposal] Transport Feature Negotiation

https://gnusha.org/pi/bitcoindev/29174459-1523-4cf8-a20f-5ce1abc302c3n@googlegroups.com/

Framework for BIP-324 transport upgrades (encryption / auth) via negotiation packets — P2P evolution topic.

[BIP Proposal] BIP324 One-Byte Message Type ID Alias Assignment

https://gnusha.org/pi/bitcoindev/aq9ADn7GscMHWc19@erisian.com.au/

Dynamic set324alias for shorter BIP-324 message type IDs — small but practical bandwidth / protocol hygiene item.

[deadmanoz]

Bitcoin Core

Bitcoin Core 32.0 release candidate 2 (v32.0rc2)

https://github.com/bitcoin/bitcoin/releases/tag/v32.0rc2

Current RC for the next major Core release — testing / release-notes review for anyone running nodes.

kernel: expose transaction version

bitcoin/bitcoin@69ad2a6

Completes libbitcoinkernel transaction accessors so clients can read tx version without parsing serialised bytes.

[deadmanoz]

BIPs merged / drafts

BIP461: Deterministic ECDSA Signatures (merged)

bitcoin/bips@55083d3

Spec for deterministic ECDSA via low-r grinding + low-s + RFC 6979 — wallet / signer interoperability topic.

BIP138: Compact Encryption Scheme for Non-seed Wallet Data (merged)

bitcoin/bips@989df0e

Encryption scheme for non-seed wallet data (descriptors / related) — practical wallet backup & privacy angle.

BIP360 ref-impl: bound merkle depth at 128

bitcoin/bips@ae34fea

Hardens BIP360 reference implementation validation bounds — relevant if covering PQ / new output types.

[deadmanoz]

Lightning, Optech & funding

LDK v0.3-rc2

https://github.com/lightningdevkit/rust-lightning/releases/tag/v0.3-rc2

RC with splicing RBF, splice-in/out in one operation, and async signing changes — implementation status for LN developers.

BOLT 4: clarify final onion payload must always contain total_msat

lightning/bolts@1aadb71

Spec clarification that can affect invoice / onion payload handling across implementations.

Bitcoin Optech Newsletter #423

https://bitcoinops.org/en/newsletters/2026/09/18/

Weekly digest covering mining-pool difficulty controllers, a Utreexo IBD improvement idea, and a draft BIP for unspendable taproot internal keys.

Expanding Btrust’s Long-Term Developer Grants Across the Global Majority

https://blog.btrust.tech/expanding-btrusts-long-term-developer-grants-across-the-global-majority/

New long-term grant recipients beyond Africa (Brazil / India) — ecosystem capacity note, not a protocol topic.

[deadmanoz]

Post-quantum / migration

QSAVE — post-quantum solution for non-migrated coins

https://gnusha.org/pi/bitcoindev/305ed790-577c-4c94-a92a-1e15c4536b40n@googlegroups.com/

Mailing-list proposal (five draft BIPs) for a no-burn PQ transition with conditional spending / watermarks / escrow-style recovery for coins that do not migrate — distinct from DropKick / PQLN threads already on this issue. Draft suite linked from the post (qsave.org).

[deadmanoz]

Protocol research

Asynchronous Pipeline Consensus: Decoupling Mining from Full-Block Validation

https://delvingbitcoin.org/t/asynchronous-pipeline-consensus-decoupling-mining-from-full-block-validation/2906

Delving sketch for scaling L1 under Nakamoto security by letting miners start on n+1 after Compact Block verification, with deferred full-block validity in a configurable window — propagation / reorg trade-off discussion.

[deadmanoz]

BIPs merged & conventions

BIP376: keep PSBT_IN_WITNESS_UTXO after finalization

bitcoin/bips#2276

Spec fix so finalization does not drop witness UTXO data taproot signing still needs — found via BIP-376 test vectors across wallet libs.

BIP379–BIP390: update descriptor BIPs to Specification type

bitcoin/bips#2292

Promotes the descriptor family (BIP379–390) from draft/informational framing to Specification type in the BIPs repo.

BIP352: do not require the optional expected argument

bitcoin/bips#2279

Silent Payments reference-impl hygiene: optional expected is no longer treated as required.

BIP-374: treat challenge hash result e as scalar

bitcoin/bips#2262

Clarifies DahLIAS / discrete-log equality proof handling of the challenge hash as a scalar (test vectors updated).

Convention for tagged hash tags in BIPs

https://gnusha.org/pi/bitcoindev/dxapm4DOcrDL6_oCYSqBAdFP0fAQA9IHInRzzTuCeWVYD2Xd0ynPsTa8hYEcRFOYQPnvoQK15TtK6oAZBfa-4b5DbIuFemSFGVifxGTLOlc=@protonmail.com/

bitcoindev thread asking whether crypto BIPs should put the BIP number or a descriptive name in tagged-hash tags (raised while reviewing BIP459 / FROST).

[deadmanoz]

Lightning & Bitcoin Core

Core Lightning v26.06.8 (security / bugfix point release)

https://github.com/ElementsProject/lightning/releases/tag/v26.06.8

Point release with vulnerability fixes (no embargo; some tests temporarily withheld). Operators encouraged to upgrade promptly; dual-funding remains experimental.

wallet, rpc: Add listrawtransactions RPC

bitcoin/bitcoin#35813

Merged Core PR exposing raw wallet transactions via RPC — useful for debugging / tooling without re-parsing wallet dumps.

wallet: make encryption state updates atomic

bitcoin/bitcoin#35752

Hardens wallet encryption state transitions so updates are applied atomically.

[deadmanoz]

Wallets & app security (peer)

Public-interest App Store research: part 1

https://kek.lol/research/appstore-wallets/

Survey of Bitcoin / crypto wallet listings and behaviours in mobile app stores — useful threat-model / UX security reading. Via MelbourneBitDevs.

[deadmanoz]

Silent Payments / Bitcoin Core

Silent Payments: Implement BIP352 (merged)

bitcoin/bitcoin#35301

Core landed the BIP352 silent-payments cryptography layer (libsecp silentpayments module + test vectors) — a major step toward wallet/send/receive support tracked under the silent-payments project issue.

private broadcast: clarify claims, mark as experimental

bitcoin/bitcoin#36309

Docs/claims for the private-broadcast feature tightened toward risk reduction, and the feature is now marked experimental as the interface may still change.

[deadmanoz]

PSBT BIP clarifications

BIP370 / BIP371: Input Finalizer clearing rules (merged)

bitcoin/bips#2277

Spec fix so v2 PSBT Input Finalizer behaviour does not wipe the fields that still define a finalized input (and related BIP371 taproot output finalizer clause cleanup).

BIP174: combiner test vector for PSBT_IN_SIGHASH_TYPE (merged)

bitcoin/bips#2275

Adds a combiner vector that would have caught a Core sighash-type bug, plus clarification that Combine is not commutative even when existing vectors look order-insensitive.

[deadmanoz]

Security culture / disclosure

Responsible disclosure and white-hat norms (Delving)

https://delvingbitcoin.org/t/responsible-disclosure-and-white-hacking-its-about-caring/2910

Practitioner thread on ethical / legal red lines for responsible disclosure when real funds are at stake (Liquid-related context, historical L2 CVEs) — useful meetup framing for “when you find a hole” discussions.

Optech Newsletter #423 Recap Podcast

https://bitcoinops.org/en/podcast/2026/09/22/

Audio recap of the already-linked #423 newsletter — handy if someone prefers listening over reading before the meetup.

[deadmanoz]

Lightning DoS disclosures

Disclosure: DoS vulnerabilities fixed in Eclair v0.14.0

https://delvingbitcoin.org/t/disclosure-dos-vulnerabilities-fixed-in-eclair-v0-14-0/2914

lnfuzz / smite found two DoS bugs fixed in Eclair v0.14.0 (feature-bit parsing heap churn on large init, and unbounded zlib channel-query decompression after BOLT 7 retired the encoding). Operators should upgrade; pairs with the responsible-disclosure culture thread already on this issue.

Frostsnap security updates

https://frostsnap.com/security/updates/

Vendor security-update page with user bulletins and technical reports for issues where the multi-device trust model fell short. Via MelbourneBitDevs.