Pith Number

pith:X7X73KVC

pith:2022:X7X73KVCWIJUOGYAFVXTLVDK2V

not attested not anchored not stored refs pending

Efficient primal heuristics for mixed-integer linear programs

Akang Wang, Dong Zhang, Haohan Huang, Linxin Yang, Sha Lai, Shengcheng Shao, Tao Quan, Xiang Zhou, Xiaodong Luo, Yuanming Zhu

arxiv:2202.02725 v1 · 2022-02-06 · 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{X7X73KVCWIJUOGYAFVXTLVDK2V}

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	2026-07-05T03:54:32.386569Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bfeffdaaa2b213471b002d6f35d46ad5591819bfe6ee3b1dd3a3b7d9042e6ba8

Aliases

arxiv: 2202.02725 · arxiv_version: 2202.02725v1 · doi: 10.48550/arxiv.2202.02725 · pith_short_12: X7X73KVCWIJU · pith_short_16: X7X73KVCWIJUOGYA · pith_short_8: X7X73KVC

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/X7X73KVCWIJUOGYAFVXTLVDK2V \
  | 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: bfeffdaaa2b213471b002d6f35d46ad5591819bfe6ee3b1dd3a3b7d9042e6ba8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4cd7fcbdc04a095f0692958d88af0f5e1ac39693987af5e864494c79c5c14fe8",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2022-02-06T07:49:19Z",
    "title_canon_sha256": "de39af7e2e0dbab4087da12d36c27e31f77f31840b5878a22030f654ed6f0b27"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2202.02725",
    "kind": "arxiv",
    "version": 1
  }
}