Pith Number

pith:EV7DEX2R

pith:2012:EV7DEX2R5GXHX663UUS34NRW7E

not attested not anchored not stored refs pending

The Complexity of Computing the Sign of the Tutte Polynomial

Leslie Ann Goldberg, Mark Jerrum

arxiv:1202.0313 v5 · 2012-02-01 · cs.CC · 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{EV7DEX2R5GXHX663UUS34NRW7E}

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	2026-05-18T02:40:47.711345Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

257e325f51e9ae7bfbdba525be3636f925522ee11ceb95163d3a7e72a055c14f

Aliases

arxiv: 1202.0313 · arxiv_version: 1202.0313v5 · doi: 10.48550/arxiv.1202.0313 · pith_short_12: EV7DEX2R5GXH · pith_short_16: EV7DEX2R5GXHX663 · pith_short_8: EV7DEX2R

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/EV7DEX2R5GXHX663UUS34NRW7E \
  | 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: 257e325f51e9ae7bfbdba525be3636f925522ee11ceb95163d3a7e72a055c14f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "13937e30ef4737025feb0e97b8f72dc558d31ddd9c505c43e5254851576fa641",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2012-02-01T22:23:34Z",
    "title_canon_sha256": "f078995e95d975ddaa1e9a46a44c58ae3d4a5cb470cee75964432b397dd51332"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.0313",
    "kind": "arxiv",
    "version": 5
  }
}