Pith Number

pith:XCP4ZYSH

pith:2017:XCP4ZYSHCO3KSMQY44Z46LAX4M

not attested not anchored not stored refs pending

A Quadratic Penalty Method for Hypergraph Matching

Chunfeng Cui, Hong Yan, Liqun Qi, Qingna Li

arxiv:1704.04581 v3 · 2017-04-15 · 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{XCP4ZYSHCO3KSMQY44Z46LAX4M}

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	2026-05-18T00:30:45.178044Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b89fcce24713b6a93218e733cf2c17e32eb87c49483b2149dfeb8d7b18544e3e

Aliases

arxiv: 1704.04581 · arxiv_version: 1704.04581v3 · doi: 10.48550/arxiv.1704.04581 · pith_short_12: XCP4ZYSHCO3K · pith_short_16: XCP4ZYSHCO3KSMQY · pith_short_8: XCP4ZYSH

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/XCP4ZYSHCO3KSMQY44Z46LAX4M \
  | 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: b89fcce24713b6a93218e733cf2c17e32eb87c49483b2149dfeb8d7b18544e3e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "af963d5c2dd9cd19027584ba65d4784e924ab49069356aa0e588e63ef9c25e4c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2017-04-15T04:58:52Z",
    "title_canon_sha256": "14d157c1f46f0bed971d986d0ac55095f9505dcc60124631e538a55f13a2d671"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.04581",
    "kind": "arxiv",
    "version": 3
  }
}