Pith Number

pith:LNBNPUYM

pith:2017:LNBNPUYMRG6S6ZIVUE6ZDYPRFX

not attested not anchored not stored refs pending

Fine-Grained Parameterized Complexity Analysis of Graph Coloring Problems

Bart M. P. Jansen, Lars Jaffke

arxiv:1701.06985 v1 · 2017-01-24 · 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{LNBNPUYMRG6S6ZIVUE6ZDYPRFX}

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	2026-05-18T00:52:09.974108Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5b42d7d30c89bd2f6515a13d91e1f12dda62115ed0ccbbf51dee34470c2c8ff9

Aliases

arxiv: 1701.06985 · arxiv_version: 1701.06985v1 · doi: 10.48550/arxiv.1701.06985 · pith_short_12: LNBNPUYMRG6S · pith_short_16: LNBNPUYMRG6S6ZIV · pith_short_8: LNBNPUYM

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/LNBNPUYMRG6S6ZIVUE6ZDYPRFX \
  | 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: 5b42d7d30c89bd2f6515a13d91e1f12dda62115ed0ccbbf51dee34470c2c8ff9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "881fb43ffc889f886a9da4c6c9ad1ea74b118021cdc22ab27d7da65ccdbb3f8e",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2017-01-24T17:13:26Z",
    "title_canon_sha256": "02ec2f8865eccff5d8d23df28682932960ec46adb6e7c69a4bf9bf30a32ecfdb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.06985",
    "kind": "arxiv",
    "version": 1
  }
}