Pith Number

pith:OM2MP7ZN

pith:2018:OM2MP7ZNA3OZEG45MNZR32VWZT

not attested not anchored not stored refs pending

Best-case and Worst-case Sparsifiability of Boolean CSPs

Astrid Pieterse, Bart M. P. Jansen, Hubie Chen

arxiv:1809.06171 v1 · 2018-09-17 · cs.CC · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OM2MP7ZNA3OZEG45MNZR32VWZT}

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.

Cited by

1 paper in Pith

Strong Sparsification for 1-in-3-SAT via Polynomial Freiman-Ruzsa

Receipt and verification

First computed	2026-05-18T00:05:35.429861Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7334c7ff2d06dd921b9d63731deab6ccf0e102a192ca3971a7d18a9c4bbe1e93

Aliases

arxiv: 1809.06171 · arxiv_version: 1809.06171v1 · doi: 10.48550/arxiv.1809.06171 · pith_short_12: OM2MP7ZNA3OZ · pith_short_16: OM2MP7ZNA3OZEG45 · pith_short_8: OM2MP7ZN

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/OM2MP7ZNA3OZEG45MNZR32VWZT \
  | 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: 7334c7ff2d06dd921b9d63731deab6ccf0e102a192ca3971a7d18a9c4bbe1e93

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "420d64e477af7d6c1ebb97505a35f0607bccd4c06f2c952ad30ccbd5a8b296be",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2018-09-17T13:00:18Z",
    "title_canon_sha256": "3bf1addd007f92ab11b486e6c491d6cb2bf3c68a17a3bede25bf891133f5b026"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.06171",
    "kind": "arxiv",
    "version": 1
  }
}