Pith Number

pith:4VKIUAZ2

pith:2001:4VKIUAZ2DCDWKSBTACNJ4RAEVH

not attested not anchored not stored refs pending

Pair Production from Vacuum at the Focus of an X-Ray Free Electron Laser

A. Ringwald (DESY)

arxiv:hep-ph/0103185 v1 · 2001-03-16 · hep-ph · astro-ph · hep-ex · hep-th · physics.plasm-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{4VKIUAZ2DCDWKSBTACNJ4RAEVH}

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

Resurgence of the Effective Action in Inhomogeneous Fields

Receipt and verification

First computed	2026-07-04T15:26:41.146288Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e5548a033a1887654833009a9e4404a9dbc4001571a56f95d22c037bc21b4ee7

Aliases

arxiv: hep-ph/0103185 · arxiv_version: hep-ph/0103185v1 · doi: 10.48550/arxiv.hep-ph/0103185 · pith_short_12: 4VKIUAZ2DCDW · pith_short_16: 4VKIUAZ2DCDWKSBT · pith_short_8: 4VKIUAZ2

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/4VKIUAZ2DCDWKSBTACNJ4RAEVH \
  | 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: e5548a033a1887654833009a9e4404a9dbc4001571a56f95d22c037bc21b4ee7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9dc896f1e457a83027580ee688c9f4b81f0580378e873d348b3e15bfc596b2e5",
    "cross_cats_sorted": [
      "astro-ph",
      "hep-ex",
      "hep-th",
      "physics.plasm-ph"
    ],
    "license": "",
    "primary_cat": "hep-ph",
    "submitted_at": "2001-03-16T12:39:18Z",
    "title_canon_sha256": "702bbc2c927f9d8c3053a2867445b273422d55d58c20ca5d245956583ec70348"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-ph/0103185",
    "kind": "arxiv",
    "version": 1
  }
}