Pith Number

pith:TNX5DXTX

pith:2016:TNX5DXTXKZQDGHIWDMY4WTDHK3

not attested not anchored not stored refs pending

The minimal hitting set generation problem: algorithms and computation

Andrew Gainer-Dewar, Paola Vera-Licona

arxiv:1601.02939 v1 · 2016-01-05 · cs.DS · cs.AI · 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{TNX5DXTXKZQDGHIWDMY4WTDHK3}

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	2026-05-18T01:22:59.295150Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9b6fd1de775660331d161b31cb4c6756c0274a6a7a44b911807afe1e97b10a4b

Aliases

arxiv: 1601.02939 · arxiv_version: 1601.02939v1 · doi: 10.48550/arxiv.1601.02939 · pith_short_12: TNX5DXTXKZQD · pith_short_16: TNX5DXTXKZQDGHIW · pith_short_8: TNX5DXTX

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/TNX5DXTXKZQDGHIWDMY4WTDHK3 \
  | 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: 9b6fd1de775660331d161b31cb4c6756c0274a6a7a44b911807afe1e97b10a4b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "703770a489c3165a93083af89033d2ad4e2d25f95d447ccf482c19d9b8d3bf0f",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2016-01-05T19:24:25Z",
    "title_canon_sha256": "ca363d39af777888ecbcf2aa37eb1862f0972b6991fcfb07e81c4dbae8b407d2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1601.02939",
    "kind": "arxiv",
    "version": 1
  }
}