Pith Number

pith:U27D2WGB

pith:2012:U27D2WGBEAWCC2RVSHQZCVNO7R

not attested not anchored not stored refs pending

Pion-nucleon elastic scattering amplitude within covariant baryon chiral perturbation theory up to $O(p^4)$ level

De-Liang Yao, H. Q. Zheng, Yun-Hua Chen

arxiv:1207.7212 v1 · 2012-07-31 · 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{U27D2WGBEAWCC2RVSHQZCVNO7R}

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	2026-05-18T01:56:00.741214Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a6be3d58c1202c216a3591e19155aefc5e7bc4833aec56549f3db8f969b26333

Aliases

arxiv: 1207.7212 · arxiv_version: 1207.7212v1 · doi: 10.48550/arxiv.1207.7212 · pith_short_12: U27D2WGBEAWC · pith_short_16: U27D2WGBEAWCC2RV · pith_short_8: U27D2WGB

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/U27D2WGBEAWCC2RVSHQZCVNO7R \
  | 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: a6be3d58c1202c216a3591e19155aefc5e7bc4833aec56549f3db8f969b26333

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "95971c4946946d9c77a764ca5ca091fc0c81aea9296120e92c79650ebd69e861",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2012-07-31T11:29:18Z",
    "title_canon_sha256": "0e85553be334cb4cabca9cfa26a04dbfd4e5e103db1f0c5fc42505801e60e18b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.7212",
    "kind": "arxiv",
    "version": 1
  }
}