Pith Number

pith:DCW5NTX6

pith:2013:DCW5NTX6WO2BUV3DLGBFR5PEWX

not attested not anchored not stored refs pending

On the proton radius problem

E. Santopinto, M.M. Giannini

arxiv:1311.0319 v1 · 2013-11-01 · hep-ph · nucl-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DCW5NTX6WO2BUV3DLGBFR5PEWX}

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	2026-05-18T03:08:06.314817Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18add6cefeb3b41a5763598258f5e4b5ef65082dad491b376abca0dbf7e0d52c

Aliases

arxiv: 1311.0319 · arxiv_version: 1311.0319v1 · doi: 10.48550/arxiv.1311.0319 · pith_short_12: DCW5NTX6WO2B · pith_short_16: DCW5NTX6WO2BUV3D · pith_short_8: DCW5NTX6

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/DCW5NTX6WO2BUV3DLGBFR5PEWX \
  | 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: 18add6cefeb3b41a5763598258f5e4b5ef65082dad491b376abca0dbf7e0d52c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "744ff624d1b2d85e7e5c29e37f46fa0e6ef3279fc3965f692c33b0fa3fec6019",
    "cross_cats_sorted": [
      "nucl-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2013-11-01T22:30:29Z",
    "title_canon_sha256": "6e492209f22d28bd19cbea73c870c5d114e3fefc37fcdc61503403168cd43c87"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.0319",
    "kind": "arxiv",
    "version": 1
  }
}