Pith Number

pith:Z4UNN7JT

pith:2026:Z4UNN7JT4GK2NCIWHI7J4F2GC7

not attested not anchored not stored refs pending

One Recipe, Many Harnesses: What Self-Evolution Encodes Across Languages and Models

Martin Hirzel, Qianlan Yang, Saurabh Pujar, Siqi Yang, Yu-Xiong Wang

arxiv:2608.10178 v1 · 2026-08-10 · cs.SE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Z4UNN7JT4GK2NCIWHI7J4F2GC7}

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	2026-08-12T00:22:59.270329Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cf28d6fd33e195a689163a3e9e174617eee3adb628339b9b4be11a9402193eef

Aliases

arxiv: 2608.10178 · arxiv_version: 2608.10178v1 · doi: 10.48550/arxiv.2608.10178 · pith_short_12: Z4UNN7JT4GK2 · pith_short_16: Z4UNN7JT4GK2NCIW · pith_short_8: Z4UNN7JT

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/Z4UNN7JT4GK2NCIWHI7J4F2GC7 \
  | 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: cf28d6fd33e195a689163a3e9e174617eee3adb628339b9b4be11a9402193eef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "148b5b5fe71b9047c969ebf494d21dce675fe2d7381ee762a8df6c14b0d85eee",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2026-08-10T19:45:45Z",
    "title_canon_sha256": "d61d8eaf9b7220846a6ad3ac16939c5903153ecab253a93104ae45b250389f25"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2608.10178",
    "kind": "arxiv",
    "version": 1
  }
}