Pith Number

pith:EWZS4AXX

pith:2011:EWZS4AXXFD472L5RRALNTCOWH3

not attested not anchored not stored refs pending

The covered components polynomial: A new representation of the edge elimination polynomial

Martin Trinks

arxiv:1103.2218 v2 · 2011-03-11 · 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{EWZS4AXXFD472L5RRALNTCOWH3}

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	2026-05-18T04:01:11.620520Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

25b32e02f728f9fd2fb18816d989d63eefa8c5e97ed904321a2fe39d60a2c465

Aliases

arxiv: 1103.2218 · arxiv_version: 1103.2218v2 · doi: 10.48550/arxiv.1103.2218 · pith_short_12: EWZS4AXXFD47 · pith_short_16: EWZS4AXXFD472L5R · pith_short_8: EWZS4AXX

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/EWZS4AXXFD472L5RRALNTCOWH3 \
  | 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: 25b32e02f728f9fd2fb18816d989d63eefa8c5e97ed904321a2fe39d60a2c465

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "854e64a116028427e77eea7f5f27c006f823c907c58cee4f60485be8be1e1934",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2011-03-11T08:48:19Z",
    "title_canon_sha256": "10afd8c41b3c342e63d078ca890c73092c658e34ffd85f36450addeb1cbb9e31"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.2218",
    "kind": "arxiv",
    "version": 2
  }
}