Pith Number

pith:F76WM5LM

pith:2013:F76WM5LMM7OVO4WC44O6HOMXJW

not attested not anchored not stored refs pending

Approximating Holant problems by winding

Colin McQuillan

arxiv:1301.2880 v1 · 2013-01-14 · cs.CC · 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{F76WM5LMM7OVO4WC44O6HOMXJW}

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	2026-05-18T03:36:34.844335Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2ffd66756c67dd5772c2e71de3b9974d8fcc4cb7fb4e593308cb16f63a97fa5a

Aliases

arxiv: 1301.2880 · arxiv_version: 1301.2880v1 · doi: 10.48550/arxiv.1301.2880 · pith_short_12: F76WM5LMM7OV · pith_short_16: F76WM5LMM7OVO4WC · pith_short_8: F76WM5LM

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/F76WM5LMM7OVO4WC44O6HOMXJW \
  | 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: 2ffd66756c67dd5772c2e71de3b9974d8fcc4cb7fb4e593308cb16f63a97fa5a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "df50e30373bb7fba0d1fde7f1e537cf8b2e6ada0e59401e759e1c3d9b55656c1",
    "cross_cats_sorted": [
      "cs.DM",
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2013-01-14T08:02:59Z",
    "title_canon_sha256": "f843d963454d3514b4c30fa1ffc746d976697f6e8dcd653274269fca70278993"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.2880",
    "kind": "arxiv",
    "version": 1
  }
}