Pith Number

pith:2PQYQ6EO

pith:2019:2PQYQ6EOS3EDM7KMILDW4ZQLNI

not attested not anchored not stored refs pending

Solving QSAT in sublinear depth

Alberto Leporati, Antonio E. Porreca, Claudio Zandron, Giancarlo Mauri, Luca Manzoni

arxiv:1902.03879 v2 · 2019-02-11 · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2PQYQ6EOS3EDM7KMILDW4ZQLNI}

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	2026-05-17T23:54:13.183626Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3e188788e96c8367d4c42c76e660b6a2a1ce4e264da61c5bf33123bc79e5dac

Aliases

arxiv: 1902.03879 · arxiv_version: 1902.03879v2 · doi: 10.48550/arxiv.1902.03879 · pith_short_12: 2PQYQ6EOS3ED · pith_short_16: 2PQYQ6EOS3EDM7KM · pith_short_8: 2PQYQ6EO

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/2PQYQ6EOS3EDM7KMILDW4ZQLNI \
  | 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: d3e188788e96c8367d4c42c76e660b6a2a1ce4e264da61c5bf33123bc79e5dac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "04be0c0c09adc6b0ec98aec2aed8ae3bf5461429498c7d6e54e29923fb62fd11",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2019-02-11T13:59:08Z",
    "title_canon_sha256": "8308d98c41c9da7e164907a9ac487da4f42086e0e3478b0abf25a4c3a0a89556"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.03879",
    "kind": "arxiv",
    "version": 2
  }
}