Pith Number

pith:UIMWGLFY

pith:2012:UIMWGLFYQL4W6SDDLJV5ISL6FD

not attested not anchored not stored refs pending

Faster Parameterized Algorithms using Linear Programming

Daniel Lokshtanov, M. S. Ramanujan, N. S. Narayanaswamy, Saket Saurabh, Venkatesh Raman

arxiv:1203.0833 v2 · 2012-03-05 · cs.DS · 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{UIMWGLFYQL4W6SDDLJV5ISL6FD}

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	2026-05-18T04:00:15.173228Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a219632cb882f96f48635a6bd4497e28fcaac067c42cc2c68f25fe0b1f982272

Aliases

arxiv: 1203.0833 · arxiv_version: 1203.0833v2 · doi: 10.48550/arxiv.1203.0833 · pith_short_12: UIMWGLFYQL4W · pith_short_16: UIMWGLFYQL4W6SDD · pith_short_8: UIMWGLFY

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/UIMWGLFYQL4W6SDDLJV5ISL6FD \
  | 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: a219632cb882f96f48635a6bd4497e28fcaac067c42cc2c68f25fe0b1f982272

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e973d567d0ad755b2f3bf99741efad38191d015e092b20357f460140903d7f5d",
    "cross_cats_sorted": [
      "cs.CC",
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2012-03-05T09:00:23Z",
    "title_canon_sha256": "35f803c7683d7658be7bf97adacf8823a7bbc4449d4697bca21acb399a7040a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.0833",
    "kind": "arxiv",
    "version": 2
  }
}