Pith Number

pith:HKO2E6V2

pith:2011:HKO2E6V2STADINHWSTMZREKIWY

not attested not anchored not stored refs pending

Approximation for Maximum Surjective Constraint Satisfaction Problems

Hang Zhou, Walter Bach

arxiv:1110.2953 v1 · 2011-10-13 · 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{HKO2E6V2STADINHWSTMZREKIWY}

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	2026-05-18T04:11:06.576676Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3a9da27aba94c03434f694d9989148b63046092f1cd5be409f390b801a2028ad

Aliases

arxiv: 1110.2953 · arxiv_version: 1110.2953v1 · doi: 10.48550/arxiv.1110.2953 · pith_short_12: HKO2E6V2STAD · pith_short_16: HKO2E6V2STADINHW · pith_short_8: HKO2E6V2

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/HKO2E6V2STADINHWSTMZREKIWY \
  | 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: 3a9da27aba94c03434f694d9989148b63046092f1cd5be409f390b801a2028ad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "334b509a6dff2f491825d1a05d237b61231142b78ceef4d293b7ea3f08d894ee",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2011-10-13T14:12:41Z",
    "title_canon_sha256": "aa9e9e977ed715a7909ff44383b93a39cec1f428bed33fefdc2032c595e5df7c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.2953",
    "kind": "arxiv",
    "version": 1
  }
}