Pith Number

pith:TOO5NJ6C

pith:2015:TOO5NJ6C77AEDRM4WHUXOIJ67I

not attested not anchored not stored refs pending

Exact Algorithms via Monotone Local Search

Daniel Lokshtanov, Fedor V. Fomin, Saket Saurabh, Serge Gaspers

arxiv:1512.01621 v1 · 2015-12-05 · cs.DS · cs.DM · 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{TOO5NJ6C77AEDRM4WHUXOIJ67I}

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	2026-05-18T01:25:10.789938Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9b9dd6a7c2ffc041c59cb1e977213efa1426f10914aa7116e3a10c4c445d1717

Aliases

arxiv: 1512.01621 · arxiv_version: 1512.01621v1 · doi: 10.48550/arxiv.1512.01621 · pith_short_12: TOO5NJ6C77AE · pith_short_16: TOO5NJ6C77AEDRM4 · pith_short_8: TOO5NJ6C

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/TOO5NJ6C77AEDRM4WHUXOIJ67I \
  | 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: 9b9dd6a7c2ffc041c59cb1e977213efa1426f10914aa7116e3a10c4c445d1717

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bc81766c6f62dfc73b67112e3be55c4a329cab6cf89895576c97de842203d72d",
    "cross_cats_sorted": [
      "cs.DM",
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2015-12-05T03:58:49Z",
    "title_canon_sha256": "6d9afb1ccbffabf8191b58d0581aedb3b022b1afdeb951a8d3df6526ab3ec992"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.01621",
    "kind": "arxiv",
    "version": 1
  }
}