Pith Number

pith:UIFRHRNK

pith:2009:UIFRHRNK6QOFWBSCCK2V6O6KDJ

not attested not anchored not stored refs pending

Positivity constraints on LECs of $\chi$PT lagrangian at $\cO(p^6)$ level

H. Q. Zheng, Ou Zhang, Zhi-Hui Guo

arxiv:0911.4447 v1 · 2009-11-23 · hep-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{UIFRHRNK6QOFWBSCCK2V6O6KDJ}

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	2026-05-18T04:20:05.065969Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a20b13c5aaf41c5b064212b55f3bca1a4f21d71d384da511d1747efd1c442eaf

Aliases

arxiv: 0911.4447 · arxiv_version: 0911.4447v1 · doi: 10.48550/arxiv.0911.4447 · pith_short_12: UIFRHRNK6QOF · pith_short_16: UIFRHRNK6QOFWBSC · pith_short_8: UIFRHRNK

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/UIFRHRNK6QOFWBSCCK2V6O6KDJ \
  | 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: a20b13c5aaf41c5b064212b55f3bca1a4f21d71d384da511d1747efd1c442eaf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "740c9e8e25cc9dc4751570f1822fb78a851a9dbb9e0a6cdc25886d1bc1d544f8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2009-11-23T16:59:40Z",
    "title_canon_sha256": "9bbb65ae847286f64fe8776c584e83aeeb494274df92998d82dcb39010809412"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.4447",
    "kind": "arxiv",
    "version": 1
  }
}