Pith Number

pith:X5WM7KB5

pith:2013:X5WM7KB5WXDBTCCB3NPEZTBNXX

not attested not anchored not stored refs pending

Parameterized Algorithms for Load Coloring Problem

Gregory Gutin, Mark Jones

arxiv:1308.1820 v2 · 2013-08-08 · cs.DS · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{X5WM7KB5WXDBTCCB3NPEZTBNXX}

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	2026-05-18T02:55:18.378371Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bf6ccfa83db5c6198841db5e4ccc2dbdf1622087da0d24e159dd9abfded031ca

Aliases

arxiv: 1308.1820 · arxiv_version: 1308.1820v2 · doi: 10.48550/arxiv.1308.1820 · pith_short_12: X5WM7KB5WXDB · pith_short_16: X5WM7KB5WXDBTCCB · pith_short_8: X5WM7KB5

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/X5WM7KB5WXDBTCCB3NPEZTBNXX \
  | 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: bf6ccfa83db5c6198841db5e4ccc2dbdf1622087da0d24e159dd9abfded031ca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d4c74d6c2a1440e12e799ce3883e45ff23aaa1abe98cf197b89ba2d74a0b19a7",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2013-08-08T11:41:30Z",
    "title_canon_sha256": "96b85811c704d5f68551bc3ca8ecba718683b82978b242d0443512f8c53609a3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.1820",
    "kind": "arxiv",
    "version": 2
  }
}