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[ANN] Bloch-SIS-PoW — post-quantum pure-PoW BlockDAG | mainnet beta | NO ICO, NO sale, unaudited, 51%-attackable — an honest ANN
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Bloch-SIS-PoW
A post-quantum, pure-PoW BlockDAG — announced the way we wish every ANN were written.
Read this first: what this thread is NOTThis is not an investment opportunity, and I will not pretend otherwise.
- No ICO, no token sale, no presale, no IEO. Nothing is for sale in this thread. Nobody affiliated with the project will ever DM you to sell you coins. If someone does, it's a scammer.
- No exchange listings and no listing effort. No market-making, no price, no "target price". The coin carries no value claim.
- Unaudited. A third-party audit is contracted but not done yet. The concrete-security analysis and the IACR ePrint paper are still outstanding.
- Nascent network: very few nodes, low hashrate → currently 51%-attackable. Stated plainly, not buried in a footnote.
- The PoW is currently running in a relaxed regime (k=4) in which the work is trivially forgeable. Details below — including why the hardened regime was activated and then reverted.
- 17% founder premine, disclosed in full: 10-year cliff, 40-year linear vest, structurally passive. You can verify it on-chain.
If you are looking for the next moonshot, this thread will waste your time. If you are interested in post-quantum PoW research running on a live network you can attack, keep reading.
What it actually isBloch-SIS-PoW is an
ownerless post-quantum Layer-1 protocol, written in Rust:
- Consensus: pure PoW, BlockDAG (GhostDAG-Q), ~30s block target
- PoW: cumulative SHAKE-256 hashcash work, with a Module-SIS lattice gate as a structural filter on top
- Signatures: hybrid post-quantum — Falcon ‖ ML-DSA
- Difficulty: ASERT-Lattice
- Storage/stack: RocksDB, libp2p, JSON-RPC (bitcoin-cli-style client included)
- License: MIT / Apache-2.0, per crate — no copyleft
"Ownerless" is meant literally: no foundation, no official website, no privileged seed nodes (
DEFAULT_SEEDS = [] in the source), no node with a special role, no curator. It is software plus a documented RPC surface, and nothing more. The repository:
gitlab.com/blochsispow-group/BlochSISPoW-project
(Rendered as text on purpose — the protocol has no official site, and we won't invent one.)
Current network status — the ugly parts includedThe chain runs a
mainnet beta. "Mainnet beta" is a
designation, not a security claim. Concretely:
- The k=8 hardening of the Module-SIS gate was activated at block 213,000 — and reverted. It multiplied mining difficulty ~4096x, the current solo/low hashrate could not find blocks, and the chain stalled. k=8 will re-activate together with a matched difficulty reduction (keeping ~30s blocks). Until then, the relaxed k=4 regime applies and the lattice work is trivially forgeable; real security today is only the cumulative SHAKE-256 hashcash work.
- Very few nodes. Low hashrate. A motivated attacker can 51% this network today. If you run a node or mine, you are strengthening research infrastructure — not joining an economy.
- Mining is solo only for now: Stratum V1/V2 has no field for a lattice solution vector, so pool mining is disabled until a SIS-native pool protocol exists.
Run a node / mine (if you understand the above)Prereqs: Rust (stable), clang, cmake, pkg-config.
git clone <the repo above> bloch && cd bloch
cargo build --release
# relay node
./target/release/bloch --testnet --data-dir ./bloch-data \
--listen /ip4/0.0.0.0/tcp/16110
# solo miner
./target/release/bloch --testnet --mine --data-dir ./bloch-data
Yes,
--testnet on mainnet beta — the flag name is historical and selects the live chain; a rename ships in a later release. Seed list is empty by design: bootstrap with
--peer <multiaddr> using any node already on the network — including one posted in this thread. Ports: 16110 P2P, 16210 RPC (keep local). Docker and Fly.io configs ship in the repo.
To be blunt about the economics one more time:
coins mined here carry no value claim. Mine to exercise the machinery and add hashrate to a young network.
Who is behind thisI'm Tiago Tenório ("TT"), founder of Postern Labs Inc. (Delaware). Postern Labs builds owned, permissively-licensed privacy/security products (vault, PQ file drop, messenger, wallet, a reproducible OS)
on top of the ownerless protocol — the BlackBerry model: we sell protection and support,
never the coin. Postern Labs has no privileged role in the protocol beyond my fully disclosed, structurally passive 17% premine. Everything product-side is also pre-production and unaudited, labelled as such per item:
https://posternlabs.comPostern ≠ Bloch, and that separation is the whole point:
https://posternlabs.com/postern-vs-bloch.html
What would actually helpIn rough order of value:
- Attacks on the Module-SIS PoW design — even on-paper, against the canonical k=8 regime
- Consensus / reorg edge cases on the GhostDAG-Q DAG
- ASERT-Lattice difficulty manipulation
- IBD and networking failures
- Build failures on your platform
File issues publicly in the repo — there is no private steward to whisper to. Break it, then tell everyone.
Standing commitments- Never sell you the coin. No sale, no listing effort, no "ecosystem fund", no yield marketing.
- Never ship a security claim before its audit. Protocol and product claims are separate and each is audit-gated.
- Never embed copyleft, never close the source.
- No tracking anywhere — the website makes zero network requests beyond its own pages.
Full disclaimer (it wins over anything anyone says, including me on a good day):
https://posternlabs.com/disclaimer.htmlThis topic is intentionally NOT self-moderated. Criticism, audits and attack write-ups are the contribution we're asking for.============================================================
POSTING NOTES (not part of the post):
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- Board: Alternate cryptocurrencies → Announcements (Altcoins)
- Do NOT self-moderate the topic — it matches the honesty framing and BitcoinTalk users distrust self-moderated ANNs.
- Consider posting a first reply reserving space ("Reserved") for network updates (k=8 re-activation, audit status, peer multiaddrs).
- If you can, include one live peer multiaddr in the thread so people have something to bootstrap from.
