Pith Number

pith:S22PUGSB

pith:2026:S22PUGSBRHCTP7IN6V43P4NVSP

not attested not anchored not stored refs pending

Induced packing treewidth

Amir Nikabadi, Pawe{\l} Rz\k{a}\.zewski

arxiv:2607.07595 v1 · 2026-07-08 · math.CO · cs.DM · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{S22PUGSBRHCTP7IN6V43P4NVSP}

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	2026-07-09T01:20:30.447600Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

96b4fa1a4189c537fd0df579b7f1b593e7933df34ba616d34bf6ee58ccc83b9b

Aliases

arxiv: 2607.07595 · arxiv_version: 2607.07595v1 · doi: 10.48550/arxiv.2607.07595 · pith_short_12: S22PUGSBRHCT · pith_short_16: S22PUGSBRHCTP7IN · pith_short_8: S22PUGSB

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/S22PUGSBRHCTP7IN6V43P4NVSP \
  | 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: 96b4fa1a4189c537fd0df579b7f1b593e7933df34ba616d34bf6ee58ccc83b9b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "35c6a9d38a4252671776e7077dfbb4dda8ceba594df181ca015f1368e5cb36b4",
    "cross_cats_sorted": [
      "cs.DM",
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2026-07-08T16:13:54Z",
    "title_canon_sha256": "fb7c5c16d217318e70e8b1da970bca0a33ac570480b612acd115e9a0ee5d72ce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.07595",
    "kind": "arxiv",
    "version": 1
  }
}