Pith Number

pith:623Z4Q6U

pith:2007:623Z4Q6UQOFC4XCP5A4TFPJUQD

not attested not anchored not stored refs pending

On the complexity of local search in unconstrained quadratic binary optimization

D\'avid Papp

arxiv:math/0701184 v2 · 2007-01-06 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{623Z4Q6UQOFC4XCP5A4TFPJUQD}

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	2026-05-18T01:14:53.797513Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f6b79e43d4838a2e5c4fe83932bd3480dc7b2447a59aa031e1c8bad02a5f044e

Aliases

arxiv: math/0701184 · arxiv_version: math/0701184v2 · doi: 10.48550/arxiv.math/0701184 · pith_short_12: 623Z4Q6UQOFC · pith_short_16: 623Z4Q6UQOFC4XCP · pith_short_8: 623Z4Q6U

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/623Z4Q6UQOFC4XCP5A4TFPJUQD \
  | 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: f6b79e43d4838a2e5c4fe83932bd3480dc7b2447a59aa031e1c8bad02a5f044e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "56e40a65c6d13a08b2e708093fa46af2e5b4d6bc160fc56ed98e9635c88fcecf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2007-01-06T04:21:25Z",
    "title_canon_sha256": "b1890513c792b8dc367ee3c669ed6336fefbf9d32c8ab5beeaa976ce0b2541e1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0701184",
    "kind": "arxiv",
    "version": 2
  }
}