Pith Number

pith:TXSSTMV7

pith:2014:TXSSTMV7NU456KSF26UIQ64TAC

not attested not anchored not stored refs pending

Fixed parameter tractable algorithms in combinatorial topology

Benjamin A. Burton, William Pettersson

arxiv:1402.3876 v2 · 2014-02-17 · math.GT · cs.CG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TXSSTMV7NU456KSF26UIQ64TAC}

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	2026-05-18T02:46:39.192738Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9de529b2bf6d39df2a45d7a8887b9300833d873d67627c0843e1e996303a0fe2

Aliases

arxiv: 1402.3876 · arxiv_version: 1402.3876v2 · doi: 10.48550/arxiv.1402.3876 · pith_short_12: TXSSTMV7NU45 · pith_short_16: TXSSTMV7NU456KSF · pith_short_8: TXSSTMV7

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/TXSSTMV7NU456KSF26UIQ64TAC \
  | 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: 9de529b2bf6d39df2a45d7a8887b9300833d873d67627c0843e1e996303a0fe2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "636420e4aa364783b437d8c65c81ddb2f6e197dc53ce05aaf858e5137c05f00c",
    "cross_cats_sorted": [
      "cs.CG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2014-02-17T03:06:07Z",
    "title_canon_sha256": "5fe0403880d1c367fec7b9f9c76bcc5f21cada2dcbf6c73d75650f8fdb920c1d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.3876",
    "kind": "arxiv",
    "version": 2
  }
}