Pith Number

pith:2Q4CGPX5

pith:2009:2Q4CGPX5WRWZC5EMOGBGQS2FIU

not attested not anchored not stored refs pending

First analytic correction beyond PFA for the electromagnetic field in sphere-plane geometry

M. Bordag, V. Nikolaev

arxiv:0911.0146 v1 · 2009-11-01 · hep-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{2Q4CGPX5WRWZC5EMOGBGQS2FIU}

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	2026-05-18T03:23:57.014362Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d438233efdb46d91748c7182684b454505779f8ef7fe7d94577b60dadf9f64dc

Aliases

arxiv: 0911.0146 · arxiv_version: 0911.0146v1 · doi: 10.48550/arxiv.0911.0146 · pith_short_12: 2Q4CGPX5WRWZ · pith_short_16: 2Q4CGPX5WRWZC5EM · pith_short_8: 2Q4CGPX5

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/2Q4CGPX5WRWZC5EMOGBGQS2FIU \
  | 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: d438233efdb46d91748c7182684b454505779f8ef7fe7d94577b60dadf9f64dc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d9537c2bba4436c372f1c166ca557af62751917fed10598916086f17a95516a2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2009-11-01T10:10:13Z",
    "title_canon_sha256": "8fe23edf5c2606a057cd01b4e479086a3324a3bf84cfebaf5b831782baf680a5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.0146",
    "kind": "arxiv",
    "version": 1
  }
}