Pith Number

pith:HJYGZXUZ

pith:2010:HJYGZXUZT47MTQUS662P5GSQ3Q

not attested not anchored not stored refs pending

Bidimensionality and EPTAS

Daniel Lokshtanov, Fedor V. Fomin, Saket Saurabh, Venkatesh Raman

arxiv:1005.5449 v2 · 2010-05-29 · cs.DS · 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{HJYGZXUZT47MTQUS662P5GSQ3Q}

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	2026-05-18T02:23:48.678033Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3a706cde999f3ec9c292f7b4fe9a50dc0c3532dbd33ac57ae3ceea3a95b47867

Aliases

arxiv: 1005.5449 · arxiv_version: 1005.5449v2 · doi: 10.48550/arxiv.1005.5449 · pith_short_12: HJYGZXUZT47M · pith_short_16: HJYGZXUZT47MTQUS · pith_short_8: HJYGZXUZ

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/HJYGZXUZT47MTQUS662P5GSQ3Q \
  | 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: 3a706cde999f3ec9c292f7b4fe9a50dc0c3532dbd33ac57ae3ceea3a95b47867

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "35d06e6bdf030a6d9186f9fad7b75b1f3add17ac4b26072e831043a3eda43d46",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2010-05-29T12:29:00Z",
    "title_canon_sha256": "8e87a8404cce2432ad7f1e17cd969f59787c01dea64de5bb551a73af083a009d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1005.5449",
    "kind": "arxiv",
    "version": 2
  }
}