Pith Number

pith:7J724P2Y

pith:2019:7J724P2YDUJ2Z6L4VPY4NOFVR3

not attested not anchored not stored refs pending

Solving large Minimum Vertex Cover problems on a quantum annealer

Elijah Pelofske, Georg Hahn, Hristo N. Djidjev

arxiv:1904.00051 v3 · 2019-03-29 · quant-ph · cs.DS · cs.ET

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7J724P2YDUJ2Z6L4VPY4NOFVR3}

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	2026-07-05T04:17:11.522368Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa7fae3f581d13acf97cabf1c6b8b58eca1d6d28c523d5d9601c106d633ebfeb

Aliases

arxiv: 1904.00051 · arxiv_version: 1904.00051v3 · doi: 10.48550/arxiv.1904.00051 · pith_short_12: 7J724P2YDUJ2 · pith_short_16: 7J724P2YDUJ2Z6L4 · pith_short_8: 7J724P2Y

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/7J724P2YDUJ2Z6L4VPY4NOFVR3 \
  | 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: fa7fae3f581d13acf97cabf1c6b8b58eca1d6d28c523d5d9601c106d633ebfeb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c6debae3bfd7b38f8bbb7ed6ab321bbb42a626891ac43cf59d6a04dc41d070e3",
    "cross_cats_sorted": [
      "cs.DS",
      "cs.ET"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2019-03-29T18:58:04Z",
    "title_canon_sha256": "e521efe0da0ea9784eecf5a607041e6db3555ef066bbe3f4a945e243ea4e9827"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.00051",
    "kind": "arxiv",
    "version": 3
  }
}