Pith Number

pith:CQVIJ3JD

pith:2013:CQVIJ3JDAPLS2LJZQJZ4JTIPWK

not attested not anchored not stored refs pending

On Constraint Satisfaction Problems below P

Laszlo Egri

arxiv:1312.4428 v2 · 2013-12-16 · 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{CQVIJ3JDAPLS2LJZQJZ4JTIPWK}

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	2026-05-18T03:04:23.662186Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

142a84ed2303d72d2d398273c4cd0fb29ba167e3a6c1cd0ada4e941b0be79332

Aliases

arxiv: 1312.4428 · arxiv_version: 1312.4428v2 · doi: 10.48550/arxiv.1312.4428 · pith_short_12: CQVIJ3JDAPLS · pith_short_16: CQVIJ3JDAPLS2LJZ · pith_short_8: CQVIJ3JD

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/CQVIJ3JDAPLS2LJZQJZ4JTIPWK \
  | 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: 142a84ed2303d72d2d398273c4cd0fb29ba167e3a6c1cd0ada4e941b0be79332

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "94d93411e92fec33ebf3d3a7b9501172a4c3296318740d29fa6e22d21bcb9e6a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2013-12-16T16:59:49Z",
    "title_canon_sha256": "0acef416e6b9188d3720ae06493c3df017236959b266d32c8d1d7ff99cc40958"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.4428",
    "kind": "arxiv",
    "version": 2
  }
}