Pith Number

pith:M3IC34UB

pith:2011:M3IC34UBAVN5PCW27R7FVIUD3M

not attested not anchored not stored refs pending

The Radius of the Proton: Size Does Matter

A. W. Thomas, G. A. Miller, J. D. Carroll, J. Rafelski

arxiv:1105.2384 v1 · 2011-05-12 · physics.atom-ph · hep-ph · 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{M3IC34UBAVN5PCW27R7FVIUD3M}

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	2026-05-18T02:01:59.282048Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

66d02df281055bd78adafc7e5aa283db305260dccd3db43d9b92c165c6484e39

Aliases

arxiv: 1105.2384 · arxiv_version: 1105.2384v1 · doi: 10.48550/arxiv.1105.2384 · pith_short_12: M3IC34UBAVN5 · pith_short_16: M3IC34UBAVN5PCW2 · pith_short_8: M3IC34UB

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/M3IC34UBAVN5PCW27R7FVIUD3M \
  | 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: 66d02df281055bd78adafc7e5aa283db305260dccd3db43d9b92c165c6484e39

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a50128b21bbdaefd90d522e688222e64e56aa197e45140577651444e0581eef2",
    "cross_cats_sorted": [
      "hep-ph",
      "nucl-ex",
      "nucl-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2011-05-12T06:39:26Z",
    "title_canon_sha256": "7d4886826ae2cdd744d2f59cb1a1a566a77bf68fa21f700852f84b9549557f7d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.2384",
    "kind": "arxiv",
    "version": 1
  }
}