Pith Number

pith:XUHD7XK7

pith:2026:XUHD7XK7LSKQNXPX2E66TUE6XA

not attested not anchored not stored refs pending

Skill Self-Play: Pushing the Frontier of LLM Capability with Co-Evolving Skills

Gangwei Jiang, Guanjun Jiang, Haotian Liu, Jingwei Ni, Mengyu Zhou, Pengyu Cheng, Shijie Zhou, Siyuan Huang, Tao Chen, Xiaoxi Jiang, Yihao Liu, Yu Cheng, Ziyi Yang

arxiv:2607.22529 v1 · 2026-07-24 · cs.CL

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XUHD7XK7LSKQNXPX2E66TUE6XA}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-27T01:21:32.259815Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bd0e3fdd5f5c9506ddf7d13de9d09eb811aa0c0a1bdfc0d9967258daa90ed436

Aliases

arxiv: 2607.22529 · arxiv_version: 2607.22529v1 · doi: 10.48550/arxiv.2607.22529 · pith_short_12: XUHD7XK7LSKQ · pith_short_16: XUHD7XK7LSKQNXPX · pith_short_8: XUHD7XK7

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/XUHD7XK7LSKQNXPX2E66TUE6XA \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: bd0e3fdd5f5c9506ddf7d13de9d09eb811aa0c0a1bdfc0d9967258daa90ed436

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d01dab186e7ace83b5fd357e968824d2e6546c6732e7dc2e8d8e55a858b95e1d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2026-07-24T17:59:22Z",
    "title_canon_sha256": "3a5f723953a308d2d60932d84e914822b6b64bc28b5fd199e34c222c7a8551ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.22529",
    "kind": "arxiv",
    "version": 1
  }
}