Pith Number

pith:2WGMS226

pith:2014:2WGMS226EEQKW7YYTCIAOMHNT3

not attested not anchored not stored refs pending

A generalization of extension complexity that captures $P$

David Avis, Hans Raj Tiwary

arxiv:1402.5950 v2 · 2014-02-23 · 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{2WGMS226EEQKW7YYTCIAOMHNT3}

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	2026-05-18T02:54:22.261463Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d58cc96b5e2120ab7f1898900730ed9efbc5c4b1b73a601a9c6716fa4f944832

Aliases

arxiv: 1402.5950 · arxiv_version: 1402.5950v2 · doi: 10.48550/arxiv.1402.5950 · pith_short_12: 2WGMS226EEQK · pith_short_16: 2WGMS226EEQKW7YY · pith_short_8: 2WGMS226

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/2WGMS226EEQKW7YYTCIAOMHNT3 \
  | 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: d58cc96b5e2120ab7f1898900730ed9efbc5c4b1b73a601a9c6716fa4f944832

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0600f2cc3c931ade34c270a85aa38a4fb352ced1868de4d03712d33b81314b9f",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2014-02-23T18:34:38Z",
    "title_canon_sha256": "f7941d88815593af819a5070315de5897c58ffd7e39bb89253660727eed7fd6d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.5950",
    "kind": "arxiv",
    "version": 2
  }
}