Pith Number

pith:UF3VOJNB

pith:2026:UF3VOJNBRFK3D6JIIR4YH252CU

not attested not anchored not stored refs pending

Search Hardness-Aware LLM-Based Problem Formulation for Expensive Simulation-Driven Design

Bing Xue, Handing Wang, Mengjie Zhang, Yuchen Li

arxiv:2607.21220 v1 · 2026-07-23 · cs.NE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UF3VOJNBRFK3D6JIIR4YH252CU}

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	2026-07-24T01:24:19.767399Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a1775725a18955b1f928447983ebba15269dfb045835f967ffa7e4f27ddfe95e

Aliases

arxiv: 2607.21220 · arxiv_version: 2607.21220v1 · doi: 10.48550/arxiv.2607.21220 · pith_short_12: UF3VOJNBRFK3 · pith_short_16: UF3VOJNBRFK3D6JI · pith_short_8: UF3VOJNB

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/UF3VOJNBRFK3D6JIIR4YH252CU \
  | 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: a1775725a18955b1f928447983ebba15269dfb045835f967ffa7e4f27ddfe95e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "401698524a38c31990d94a9a8dff905dd6d0896d527dff2731a72d648df80aeb",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.NE",
    "submitted_at": "2026-07-23T11:37:49Z",
    "title_canon_sha256": "dd523059d9be7f35b6260110abdb58b60231d9f451306b0164a09759333eb863"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.21220",
    "kind": "arxiv",
    "version": 1
  }
}