Pith Number

pith:PWPQAY2K

pith:2025:PWPQAY2KGSYX2LSQGGWPAT2MRD

not attested not anchored not stored refs pending

Using Code Generation to Solve Open Instances of Combinatorial Design Problems

Christopher D. Rosin

arxiv:2501.17725 v1 · 2025-01-29 · cs.AI · cs.CL · cs.DM · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PWPQAY2KGSYX2LSQGGWPAT2MRD}

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	2026-07-05T10:06:57.011855Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d9f00634a34b17d2e5031acf04f4c88d00362163430b314e745ba75245055d6

Aliases

arxiv: 2501.17725 · arxiv_version: 2501.17725v1 · doi: 10.48550/arxiv.2501.17725 · pith_short_12: PWPQAY2KGSYX · pith_short_16: PWPQAY2KGSYX2LSQ · pith_short_8: PWPQAY2K

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/PWPQAY2KGSYX2LSQGGWPAT2MRD \
  | 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: 7d9f00634a34b17d2e5031acf04f4c88d00362163430b314e745ba75245055d6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5614b7b0b1655185cc041ef960da031ddd11de5910cb951621fd70cc981a3e78",
    "cross_cats_sorted": [
      "cs.CL",
      "cs.DM",
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2025-01-29T15:57:43Z",
    "title_canon_sha256": "7ed18b2bc52a545816ba3b6d9d180a8a3d9df6b2b0cdea95111222811af107dc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.17725",
    "kind": "arxiv",
    "version": 1
  }
}