Pith Number

pith:5PQPZFIQ

pith:2019:5PQPZFIQECKX7HBALQINKGF5MV

not attested not anchored not stored refs pending

The proton radius: From a puzzle to precision

Hans-Werner Hammer, Ulf-G. Mei{\ss}ner

arxiv:1912.03881 v1 · 2019-12-09 · hep-ph · hep-ex · hep-lat · nucl-ex · 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{5PQPZFIQECKX7HBALQINKGF5MV}

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.

Cited by

1 paper in Pith

Disentangling effects of nucleon size and nucleus structure in relativistic heavy-ion collisions

Receipt and verification

First computed	2026-07-05T00:34:19.772164Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ebe0fc951020957f9c205c10d518bd655b367a186dcdd0c43b1f19d2613871a8

Aliases

arxiv: 1912.03881 · arxiv_version: 1912.03881v1 · doi: 10.48550/arxiv.1912.03881 · pith_short_12: 5PQPZFIQECKX · pith_short_16: 5PQPZFIQECKX7HBA · pith_short_8: 5PQPZFIQ

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/5PQPZFIQECKX7HBALQINKGF5MV \
  | 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: ebe0fc951020957f9c205c10d518bd655b367a186dcdd0c43b1f19d2613871a8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a497acc42800e8750b584cd45d6f27fd7fae2833277f474368c8f4faab147b03",
    "cross_cats_sorted": [
      "hep-ex",
      "hep-lat",
      "nucl-ex",
      "nucl-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2019-12-09T07:30:22Z",
    "title_canon_sha256": "adc52fa08dcb4651b08b49aac65636b0bfdfba6a8251245603088219a222ab7a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.03881",
    "kind": "arxiv",
    "version": 1
  }
}