Pith Number

pith:NTUWMEZ3

pith:2019:NTUWMEZ3ZARBFV6VQNMEFARYNR

not attested not anchored not stored refs pending

The pion-nucleon $\sigma$ term from pionic atoms

A. Gal, E. Friedman

arxiv:1901.03130 v2 · 2019-01-10 · nucl-th · hep-ph · nucl-ex

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NTUWMEZ3ZARBFV6VQNMEFARYNR}

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	2026-05-17T23:48:50.265823Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6ce966133bc82212d7d583584282386c49d8b63f1bb1089fc482affdb787e7ff

Aliases

arxiv: 1901.03130 · arxiv_version: 1901.03130v2 · doi: 10.48550/arxiv.1901.03130 · pith_short_12: NTUWMEZ3ZARB · pith_short_16: NTUWMEZ3ZARBFV6V · pith_short_8: NTUWMEZ3

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/NTUWMEZ3ZARBFV6VQNMEFARYNR \
  | 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: 6ce966133bc82212d7d583584282386c49d8b63f1bb1089fc482affdb787e7ff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0537f3d5835dcd72f9c13a1f7ed86f27c1750df21685629f0fa623eb9c53acab",
    "cross_cats_sorted": [
      "hep-ph",
      "nucl-ex"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nucl-th",
    "submitted_at": "2019-01-10T12:41:34Z",
    "title_canon_sha256": "5192b9157310d354782e94af7ca3d6bb23e7bfaafacbec51ef6663e32e12800d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.03130",
    "kind": "arxiv",
    "version": 2
  }
}