Pith Number

pith:LSVH3TOH

pith:2019:LSVH3TOHJ3I2WEVDS23Z5UI2L5

not attested not anchored not stored refs pending

WeGotYouCovered: The Winning Solver from the PACE 2019 Implementation Challenge, Vertex Cover Track

Christian Schulz, Darren Strash, Demian Hespe, Sebastian Lamm

arxiv:1908.06795 v2 · 2019-08-19 · 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{LSVH3TOHJ3I2WEVDS23Z5UI2L5}

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	2026-07-04T23:58:29.532429Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5caa7dcdc74ed1ab12a396b79ed11a5f7c24acdfbc632f6d13a939525a840caa

Aliases

arxiv: 1908.06795 · arxiv_version: 1908.06795v2 · doi: 10.48550/arxiv.1908.06795 · pith_short_12: LSVH3TOHJ3I2 · pith_short_16: LSVH3TOHJ3I2WEVD · pith_short_8: LSVH3TOH

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/LSVH3TOHJ3I2WEVDS23Z5UI2L5 \
  | 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: 5caa7dcdc74ed1ab12a396b79ed11a5f7c24acdfbc632f6d13a939525a840caa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "415302502cf9943a80951c358612a1e7d64d3171c13fb79081ce26c24125df1f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2019-08-19T13:34:15Z",
    "title_canon_sha256": "fc84a783131bcb9415ecb2b2f2dccb49e8ce69a5469a8de76c066cf1bce8a02b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.06795",
    "kind": "arxiv",
    "version": 2
  }
}