Pith Number

pith:USI2F5O5

pith:2015:USI2F5O54L3DN5L3VES2AYEB3J

not attested not anchored not stored refs pending

Practical Algorithms for Linear Boolean-width

Chiel B. Ten Brinke, Frank J. P. van Houten, Hans L. Bodlaender

arxiv:1509.07687 v1 · 2015-09-25 · cs.CC · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{USI2F5O54L3DN5L3VES2AYEB3J}

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	2026-05-18T01:32:02.165832Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a491a2f5dde2f636f57ba925a06081da7d261390b3465950c7a98d074492f8c7

Aliases

arxiv: 1509.07687 · arxiv_version: 1509.07687v1 · doi: 10.48550/arxiv.1509.07687 · pith_short_12: USI2F5O54L3D · pith_short_16: USI2F5O54L3DN5L3 · pith_short_8: USI2F5O5

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/USI2F5O54L3DN5L3VES2AYEB3J \
  | 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: a491a2f5dde2f636f57ba925a06081da7d261390b3465950c7a98d074492f8c7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6553cc269981f250ce8ce664d5f156121a6db427071457f81f575ebb1a0e38bf",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2015-09-25T11:42:03Z",
    "title_canon_sha256": "59a086de15f11b341ba1734028376942df45077d96800b0d1da0094088f3068e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.07687",
    "kind": "arxiv",
    "version": 1
  }
}