Pith Number

pith:XJLBKRUO

pith:2010:XJLBKRUO6NK6ZD3AKIH4WOSB5L

not attested not anchored not stored refs pending

Optimal Base Encodings for Pseudo-Boolean Constraints

Carsten Fuhs, Michael Codish, Peter Schneider-Kamp, Yoav Fekete

arxiv:1007.4935 v3 · 2010-07-28 · 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{XJLBKRUO6NK6ZD3AKIH4WOSB5L}

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	2026-05-18T04:32:11.831775Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ba5615468ef355ec8f60520fcb3a41eaefff3a45e84be659269a063eb13976f6

Aliases

arxiv: 1007.4935 · arxiv_version: 1007.4935v3 · doi: 10.48550/arxiv.1007.4935 · pith_short_12: XJLBKRUO6NK6 · pith_short_16: XJLBKRUO6NK6ZD3A · pith_short_8: XJLBKRUO

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/XJLBKRUO6NK6ZD3AKIH4WOSB5L \
  | 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: ba5615468ef355ec8f60520fcb3a41eaefff3a45e84be659269a063eb13976f6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e19dbdc545582f9c19ba9650b3c5152adc7a112943ba69105c9b7fda446c94d9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2010-07-28T12:02:39Z",
    "title_canon_sha256": "39230cdf1625271f4e9f028b475f6a50b3c3848b3a73913d1ad81b12bdcccdf1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1007.4935",
    "kind": "arxiv",
    "version": 3
  }
}