scroll-tech/ceno

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Accelerated Zero-knowledge Virtual Machine by Non-uniform Prover Based on GKR Protocol

Stars: 153
Forks: 43
Open beginner issues: 0
Indexed issues: 60
Avg merge: 3d 13h
Merged PRs (30d): 4

Dominant language: Rust
License: Apache-2.0
Last GitHub push: Sep 15, 2026
Latest indexed: Sep 19, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: good first issue

Beginner friendly Everything

Open All

60 open issues indexed

Optimize Reth execution with native KZG and BLS12-381 acceleration Open

executor opcode circuit optimization regression-e2e-reth

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

scroll-tech/ceno#1390 · Opened Jul 22, 2026
PublicValuesAir underconstrains tidx across AIR boundaries Open

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

scroll-tech/ceno#1383 · Opened Jul 9, 2026
recursion v2: minimize copied OpenVM system interfaces Open

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

scroll-tech/ceno#1366 · Opened Jun 20, 2026
run reth test (block = 23817600) in ci Open

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

scroll-tech/ceno#1346 · Opened Jun 3, 2026
cross repo cd Open

Difficulty 4/5 3-5 days Newbie friendliness 15/100

scroll-tech/ceno#1337 · Opened May 13, 2026
batch open multiple `q` Open

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

scroll-tech/ceno#1334 · Opened Apr 30, 2026
cluster prover Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

scroll-tech/ceno#1325 · Opened Apr 23, 2026
negative tests (chip level) Open

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

scroll-tech/ceno#1320 · 1 comment · Opened Apr 22, 2026
Support KoalaBear field as a faster alternative to BabyBear Open

Difficulty 5/5 Over a week Newbie friendliness 45/100

scroll-tech/ceno#1305 · 1 reaction · Opened Apr 14, 2026
circuit under-constraint in opcode-level bugs Open

scroll-tech/ceno#1296 · 1 assignee · Opened Apr 6, 2026
sumcheck evaluation point set Open

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

scroll-tech/ceno#1270 · 1 comment · Opened Mar 17, 2026
[precompile] resolve round_constant in keccak precompile to fixed commitment Open

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

scroll-tech/ceno#1239 · Opened Jan 22, 2026
[recursion] leaf guest program should be independent of RiscV's vk Open

scroll-tech/ceno#1229 · 1 assignee · Opened Jan 19, 2026
lw/sw opcode into single chip Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

scroll-tech/ceno#1221 · Opened Jan 7, 2026
rv32im chip optimisation plan Open

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

scroll-tech/ceno#1220 · Opened Jan 7, 2026
Many shards & cycles with relative small gas Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

scroll-tech/ceno#1216 · Opened Jan 2, 2026
improve the proving of Shard that has Keccak/Ecc precompiles to be 4Mhz Open

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

scroll-tech/ceno#1188 · Opened Dec 10, 2025
improve the proving of RISC-V shard to be 10Mhz Open

scroll-tech/ceno#1187 · 1 assignee · Opened Dec 10, 2025
GPU OOM Open

Difficulty 4/5 3-5 days Newbie friendliness 15/100

scroll-tech/ceno#1186 · Opened Dec 10, 2025
Ethproofs: mainnet proving troubleshooting Open

Difficulty 4/5 3-5 days Newbie friendliness 20/100

scroll-tech/ceno#1185 · Opened Dec 10, 2025
implement BN254_FP precompiles Open

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

scroll-tech/ceno#1176 · Opened Dec 5, 2025
switch to [no_std] for guest program Open

toolchain

Difficulty 3/5 1-2 days Newbie friendliness 35/100

scroll-tech/ceno#1168 · Opened Dec 3, 2025
conditional enable dummy circuit and disable by default Open

Difficulty 4/5 3-5 days Newbie friendliness 20/100

scroll-tech/ceno#1152 · Opened Nov 26, 2025
gpu optimizations Open

Difficulty 5/5 Over a week Newbie friendliness 10/100

scroll-tech/ceno#1128 · Opened Nov 12, 2025
make circuit stats shows `ShardRAMCircuit` Open

good first issue

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

scroll-tech/ceno#1116 · 4 comments · Opened Nov 5, 2025
review shard ram bus chip soundness Open

Difficulty 5/5 Over a week Newbie friendliness 10/100

scroll-tech/ceno#1097 · Opened Oct 29, 2025
Not able to change stack size in `cargo bench`. Open

good first issue

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

scroll-tech/ceno#1075 · 1 comment · 1 reaction · Opened Sep 25, 2025
Feat: generate `hints.bin` automatically from the guest program. Open

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

scroll-tech/ceno#1059 · Opened Sep 8, 2025
feat: load `public-io` from file in CLI Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

scroll-tech/ceno#1058 · Opened Sep 8, 2025
fix bss/sbss from static read-only to rw Open

Difficulty 3/5 1-2 days Newbie friendliness 62/100

scroll-tech/ceno#1029 · Opened Aug 22, 2025
review and add memory bound check Open

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

scroll-tech/ceno#1027 · Opened Aug 22, 2025
range check on hint table Open

bug

scroll-tech/ceno#999 · 1 assignee · Opened Aug 5, 2025
more enhancement of sumcheck protocol Open

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

scroll-tech/ceno#934 · Opened May 5, 2025
review guest program error bypass application constrain `commit` Open

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

scroll-tech/ceno#885 · Opened Mar 27, 2025
improve PIOP implementation soundness via spongefish style alternative in plonky3 Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

scroll-tech/ceno#884 · Opened Mar 27, 2025
Ceno BaseVM soundness & audit Open

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

scroll-tech/ceno#883 · 7 comments · Opened Mar 27, 2025
clean up clippy "allowed-duplicate-crates" Open

dependencies

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

scroll-tech/ceno#865 · Opened Mar 19, 2025
Respect read-only sections in the ELF Open

scroll-tech/ceno#751 · 1 assignee · Opened Dec 13, 2024
Skip building of examples and ceno_rt when running `cargo clippy` or `cargo check` Open

scroll-tech/ceno#747 · 1 assignee · Opened Dec 13, 2024
Audit code for "false sharing" anti-patterns Open

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

scroll-tech/ceno#730 · 1 comment · Opened Dec 10, 2024
Demo precompile as firmware. Open

scroll-tech/ceno#729 · 1 comment · 1 assignee · Opened Dec 10, 2024
Proposal features: 16 -> 32 bit range check on LogUp Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 20/100

scroll-tech/ceno#702 · 3 comments · 2 reactions · Opened Dec 5, 2024
guest example: json deserde and serde Open

scroll-tech/ceno#676 · 1 comment · 1 assignee · Opened Dec 3, 2024
Unify ADD and ADDI Open

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

scroll-tech/ceno#665 · Opened Dec 2, 2024
Update test programs vs platform config Open

cleanup

scroll-tech/ceno#658 · 1 comment · 1 assignee · Opened Nov 30, 2024
[Super Issue] Benchmarks Open

scroll-tech/ceno#641 · 3 comments · 3 assignees · Opened Nov 27, 2024
Make hint padding 'inaccessible' Open

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

scroll-tech/ceno#634 · 2 comments · Opened Nov 26, 2024
Make the emulator match the circuits Open

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

scroll-tech/ceno#630 · 2 comments · Opened Nov 26, 2024
Convert branch instruction to use absolute addressing Open

good first issue

Difficulty 3/5 1-2 days Newbie friendliness 35/100

scroll-tech/ceno#626 · 2 comments · Opened Nov 25, 2024
Run official Risc-V tests Open

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

scroll-tech/ceno#564 · 1 comment · Opened Nov 6, 2024

scroll-tech/ceno

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