Pith Number

pith:QHND7D52

pith:2019:QHND7D52XKZ7LVQFJKXFGQ2A6G

not attested not anchored not stored refs pending

A feasibility pump algorithm embedded in an annealing framework

Helmut G. Katzgraber, Maliheh Aramon, Nicolas Pradignac

arxiv:1906.06434 v1 · 2019-06-14 · math.OC · cs.DM · physics.comp-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QHND7D52XKZ7LVQFJKXFGQ2A6G}

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	2026-05-17T23:43:13.696964Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81da3f8fbabab3f5d6054aae534340f1b68e4680e0215a52b035c047a7451df3

Aliases

arxiv: 1906.06434 · arxiv_version: 1906.06434v1 · doi: 10.48550/arxiv.1906.06434 · pith_short_12: QHND7D52XKZ7 · pith_short_16: QHND7D52XKZ7LVQF · pith_short_8: QHND7D52

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/QHND7D52XKZ7LVQFJKXFGQ2A6G \
  | 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: 81da3f8fbabab3f5d6054aae534340f1b68e4680e0215a52b035c047a7451df3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "df0269d3fe83cf324a6d06d90e80f6eb63546035d2cefc2588ed2613b2b38e4a",
    "cross_cats_sorted": [
      "cs.DM",
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2019-06-14T23:35:40Z",
    "title_canon_sha256": "1153dd62e91dd8707e4b670cab14aa6e8d0c0723245b5ade4664cea6e5d27dd8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.06434",
    "kind": "arxiv",
    "version": 1
  }
}