Pith Number

pith:TARHPC5A

pith:2018:TARHPC5AI6T5LGZMYF5GHFZE2P

not attested not anchored not stored refs pending

Min (A)cyclic Feedback Vertex Sets and Min Ones Monotone 3-SAT

Irena Rusu

arxiv:1809.01998 v1 · 2018-09-06 · cs.CC · cs.DM · 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{TARHPC5AI6T5LGZMYF5GHFZE2P}

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	2026-05-18T00:06:21.540945Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9822778ba047a7d59b2cc17a639724d3c4fd2d5828805f386dd9c29899e1e068

Aliases

arxiv: 1809.01998 · arxiv_version: 1809.01998v1 · doi: 10.48550/arxiv.1809.01998 · pith_short_12: TARHPC5AI6T5 · pith_short_16: TARHPC5AI6T5LGZM · pith_short_8: TARHPC5A

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/TARHPC5AI6T5LGZMYF5GHFZE2P \
  | 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: 9822778ba047a7d59b2cc17a639724d3c4fd2d5828805f386dd9c29899e1e068

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "09fb4336d6d34c9540e95ba9756c909338dee8bb3f3a24d8c119f549a85c2f9c",
    "cross_cats_sorted": [
      "cs.DM",
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2018-09-06T13:58:03Z",
    "title_canon_sha256": "dd5c72e4681d9a8c481afc3c80da99728c29a851b6b9da5aaa97a35e1694e599"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.01998",
    "kind": "arxiv",
    "version": 1
  }
}