Pith Number

pith:DDYIF5B7

pith:2011:DDYIF5B7N7D3RZIGNQ56O5MEW5

not attested not anchored not stored refs pending

Isomorph-free generation of 2-connected graphs with applications

Derrick Stolee

arxiv:1104.5261 v1 · 2011-04-27 · 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{DDYIF5B7N7D3RZIGNQ56O5MEW5}

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	2026-05-18T04:23:21.867485Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18f082f43f6fc7b8e5066c3be77584b75c66614e09f9535d14d381c589787bb8

Aliases

arxiv: 1104.5261 · arxiv_version: 1104.5261v1 · doi: 10.48550/arxiv.1104.5261 · pith_short_12: DDYIF5B7N7D3 · pith_short_16: DDYIF5B7N7D3RZIG · pith_short_8: DDYIF5B7

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/DDYIF5B7N7D3RZIGNQ56O5MEW5 \
  | 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: 18f082f43f6fc7b8e5066c3be77584b75c66614e09f9535d14d381c589787bb8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "021966ff2b5f263b0ddbe05b740130d97fe2a21254834cc380d77af381115e4b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2011-04-27T22:11:33Z",
    "title_canon_sha256": "731d2be3ea452aed661c18460e21634566d7a7d502cd33eed9df8c6f86464009"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.5261",
    "kind": "arxiv",
    "version": 1
  }
}