Pith Number

pith:7IZPDJM5

pith:2010:7IZPDJM5M6DHBWNBWE3WKVJG2V

not attested not anchored not stored refs pending

Exact counting of Euler Tours for generalized series-parallel graphs

Mary Cryan, Prasad Chebolu, Russell Martin

arxiv:1005.3477 v1 · 2010-05-19 · cs.DS · 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{7IZPDJM5M6DHBWNBWE3WKVJG2V}

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	2026-05-18T02:23:56.522479Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa32f1a59d678670d9a1b137655526d57b8b7a8afa368991e1d019c861f84efc

Aliases

arxiv: 1005.3477 · arxiv_version: 1005.3477v1 · doi: 10.48550/arxiv.1005.3477 · pith_short_12: 7IZPDJM5M6DH · pith_short_16: 7IZPDJM5M6DHBWNB · pith_short_8: 7IZPDJM5

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/7IZPDJM5M6DHBWNBWE3WKVJG2V \
  | 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: fa32f1a59d678670d9a1b137655526d57b8b7a8afa368991e1d019c861f84efc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "007d354cfaff25b4d23de8714ee17e49914b0f7228ab13b12ed6251aa90f2b9d",
    "cross_cats_sorted": [
      "cs.DM",
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2010-05-19T15:43:05Z",
    "title_canon_sha256": "20d8d495a92373d052d9da3334039e5f2a408b7eb36cfa7dbeffd26405d28683"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1005.3477",
    "kind": "arxiv",
    "version": 1
  }
}