Pith Number

pith:K6OTVU26

pith:2015:K6OTVU26H2HAP55EZIJ2XZFXYI

not attested not anchored not stored refs pending

Bounds and Fixed-Parameter Algorithms for Weighted Improper Coloring (Extended Version)

Bjarki \'Ag\'ust Gu{\dh}mundsson, Bj\"orn Orri S{\ae}mundsson, T\'omas Ken Magn\'usson

arxiv:1509.00099 v1 · 2015-09-01 · cs.DM · cs.CC · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{K6OTVU26H2HAP55EZIJ2XZFXYI}

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	2026-05-18T01:34:30.626189Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

579d3ad35e3e8e07f7a4ca13abe4b7c20ee7b9d60c26e290cbc8d1e2ef1708d1

Aliases

arxiv: 1509.00099 · arxiv_version: 1509.00099v1 · doi: 10.48550/arxiv.1509.00099 · pith_short_12: K6OTVU26H2HA · pith_short_16: K6OTVU26H2HAP55E · pith_short_8: K6OTVU26

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/K6OTVU26H2HAP55EZIJ2XZFXYI \
  | 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: 579d3ad35e3e8e07f7a4ca13abe4b7c20ee7b9d60c26e290cbc8d1e2ef1708d1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d786b41be00f3d53af975dfde36119f415b6e652f193e7917e56f5d0821d6669",
    "cross_cats_sorted": [
      "cs.CC",
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2015-09-01T00:15:32Z",
    "title_canon_sha256": "89d7506a3a236ae0f3c898d5c1df7b1210a08f162584f27ecae052b9d7af0513"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.00099",
    "kind": "arxiv",
    "version": 1
  }
}