Pith Number

pith:R2KL7IWA

pith:2011:R2KL7IWAVD3D5NUQ5URDOCIE44

not attested not anchored not stored refs pending

Remarks on the proton charge radius

Hirohisa Ishikawa, Keiji Watanabe

arxiv:1107.1610 v1 · 2011-07-08 · 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{R2KL7IWAVD3D5NUQ5URDOCIE44}

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	2026-05-18T04:18:35.343300Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8e94bfa2c0a8f63eb690ed22370904e703055c9442a40cbcc5c0a866024fe5fd

Aliases

arxiv: 1107.1610 · arxiv_version: 1107.1610v1 · doi: 10.48550/arxiv.1107.1610 · pith_short_12: R2KL7IWAVD3D · pith_short_16: R2KL7IWAVD3D5NUQ · pith_short_8: R2KL7IWA

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/R2KL7IWAVD3D5NUQ5URDOCIE44 \
  | 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: 8e94bfa2c0a8f63eb690ed22370904e703055c9442a40cbcc5c0a866024fe5fd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "78312fa4e1e0586805459e9e507a35ddae14e26f7e50ac6d6e22ae0fd8505823",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2011-07-08T11:32:46Z",
    "title_canon_sha256": "f12cee7cb542b48820c0ed45729aa4bcf7d8a0fa7f13e845de7258c62c6bd8f9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.1610",
    "kind": "arxiv",
    "version": 1
  }
}