Pith Number

pith:NW4TE6Y4

pith:2018:NW4TE6Y4BA23SXIVTJUKHHNWP5

not attested not anchored not stored refs pending

Data-compression for Parametrized Counting Problems on Sparse graphs

Dimitrios M. Thilikos, Eun Jung Kim, Maria Serna

arxiv:1809.08160 v2 · 2018-09-21 · cs.DS · 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{NW4TE6Y4BA23SXIVTJUKHHNWP5}

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	2026-05-18T00:04:54.294961Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6db9327b1c0835b95d159a68a39db67f51c471be954563630e83ec874fa52d13

Aliases

arxiv: 1809.08160 · arxiv_version: 1809.08160v2 · doi: 10.48550/arxiv.1809.08160 · pith_short_12: NW4TE6Y4BA23 · pith_short_16: NW4TE6Y4BA23SXIV · pith_short_8: NW4TE6Y4

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/NW4TE6Y4BA23SXIVTJUKHHNWP5 \
  | 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: 6db9327b1c0835b95d159a68a39db67f51c471be954563630e83ec874fa52d13

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e16886b5d43a66e6dee35d1a737546fa1f219c4b04aee6f9ccd07ea161abb832",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2018-09-21T14:52:04Z",
    "title_canon_sha256": "96275e09069ddcceb3157ff9ccdb73a4317ca666a5946e57da31847ba4d7d74b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.08160",
    "kind": "arxiv",
    "version": 2
  }
}