Pith Number

pith:YOB6A6KP

pith:2019:YOB6A6KPZ3TTEC4YF4GXOJNQZC

not attested not anchored not stored refs pending

On the Cottingham formula and the electromagnetic contribution to the proton-neutron mass splitting

Andre Walker-Loud

arxiv:1907.05459 v1 · 2019-07-11 · nucl-th · hep-lat · 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{YOB6A6KPZ3TTEC4YF4GXOJNQZC}

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	2026-05-17T23:40:48.354584Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c383e0794fcee7320b982f0d7725b0c896363ffb794fdd71b9639fdc5dc7b361

Aliases

arxiv: 1907.05459 · arxiv_version: 1907.05459v1 · doi: 10.48550/arxiv.1907.05459 · pith_short_12: YOB6A6KPZ3TT · pith_short_16: YOB6A6KPZ3TTEC4Y · pith_short_8: YOB6A6KP

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/YOB6A6KPZ3TTEC4YF4GXOJNQZC \
  | 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: c383e0794fcee7320b982f0d7725b0c896363ffb794fdd71b9639fdc5dc7b361

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5c944be215e943d50cc05a63c6ef5f15637f15d04ce38c35d2349d30d3d7cbc7",
    "cross_cats_sorted": [
      "hep-lat",
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nucl-th",
    "submitted_at": "2019-07-11T19:28:02Z",
    "title_canon_sha256": "5b82d6790ee0e6ad9b9944f4a47b185932cde1d992a43fddd17479e560126f3c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.05459",
    "kind": "arxiv",
    "version": 1
  }
}