Pith Number

pith:5W3PO272

pith:2015:5W3PO2724LFDUOHNKVIU4K3NDN

not attested not anchored not stored refs pending

External Field QED on Cauchy Surfaces

D.-A. Deckert, F. Merkl

arxiv:1505.06039 v2 · 2015-05-22 · math-ph · hep-th · math.MP · quant-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{5W3PO2724LFDUOHNKVIU4K3NDN}

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	2026-05-18T01:30:15.150045Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

edb6f76bfae2ca3a38ed55514e2b6d1b656b13598b454764717543e95727a3e1

Aliases

arxiv: 1505.06039 · arxiv_version: 1505.06039v2 · doi: 10.48550/arxiv.1505.06039 · pith_short_12: 5W3PO2724LFD · pith_short_16: 5W3PO2724LFDUOHN · pith_short_8: 5W3PO272

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/5W3PO2724LFDUOHNKVIU4K3NDN \
  | 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: edb6f76bfae2ca3a38ed55514e2b6d1b656b13598b454764717543e95727a3e1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7c7bce79e4d8ee1deb39785c65defe327915f0f02cdda6b950d087a4891c81f4",
    "cross_cats_sorted": [
      "hep-th",
      "math.MP",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2015-05-22T12:11:37Z",
    "title_canon_sha256": "92c5d1a82a915e39187b27be17a9ec5cc9b20183db466f74b08d301cabd08723"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.06039",
    "kind": "arxiv",
    "version": 2
  }
}