Pith Number

pith:QPKOLZ32

pith:2019:QPKOLZ326A5ZH7345DYINPB3YJ

not attested not anchored not stored refs pending

The Regularization of Small Sub-Constraint Satisfaction Problems

Ke Liu, Petra Hofstedt, Sven L\"offler

arxiv:1908.05907 v1 · 2019-08-16 · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QPKOLZ326A5ZH7345DYINPB3YJ}

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	2026-07-04T23:57:54.282050Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83d4e5e77af03b93ff7ce8f086bc3bc250cba00145ccb38b5005778a77651da2

Aliases

arxiv: 1908.05907 · arxiv_version: 1908.05907v1 · doi: 10.48550/arxiv.1908.05907 · pith_short_12: QPKOLZ326A5Z · pith_short_16: QPKOLZ326A5ZH734 · pith_short_8: QPKOLZ32

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/QPKOLZ326A5ZH7345DYINPB3YJ \
  | 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: 83d4e5e77af03b93ff7ce8f086bc3bc250cba00145ccb38b5005778a77651da2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "96dc60b4cc8ec344d012a5e51c225b8dd985e3f8ead067d89dc5ad225c6c60f7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2019-08-16T09:24:45Z",
    "title_canon_sha256": "6045df674c4512d187d4991283551678b32f2800831c5be69baf16c34cde9d89"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.05907",
    "kind": "arxiv",
    "version": 1
  }
}