Pith Number

pith:4MEHEIX2

pith:2026:4MEHEIX2ULPWSC3IKPY7QZCXPL

not attested not anchored not stored refs pending

BenchEvolver: Frontier Task Synthesis via Solution-Centric Evolution

Aaron J. Li, Bin Yu, Chenxiao Yan, Dawn Song, Haikun Zhao, Ion Stoica, Li Cao, Mert Cemri, Shu Liu, Wenjie Ma, Yangzhen Wu, Yuran Xiu, Ziheng Zhou

arxiv:2606.01286 v1 · 2026-05-31 · cs.SE · cs.AI · cs.CL · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4MEHEIX2ULPWSC3IKPY7QZCXPL}

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	2026-06-02T02:04:28.979625Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e3087222faa2df690b6853f1f864577afe35c79a3bb285a5542466e861733316

Aliases

arxiv: 2606.01286 · arxiv_version: 2606.01286v1 · doi: 10.48550/arxiv.2606.01286 · pith_short_12: 4MEHEIX2ULPW · pith_short_16: 4MEHEIX2ULPWSC3I · pith_short_8: 4MEHEIX2

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/4MEHEIX2ULPWSC3IKPY7QZCXPL \
  | 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: e3087222faa2df690b6853f1f864577afe35c79a3bb285a5542466e861733316

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "13d42eb5d2c5497334dcc7c4f60109eea18899292b08a7a526eca96d2879d527",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CL",
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2026-05-31T15:12:16Z",
    "title_canon_sha256": "ea569c68d49d3d475fec584a73cb5c585b99e8c9d555fd20fbf917b8320749f6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.01286",
    "kind": "arxiv",
    "version": 1
  }
}