Pith Number

pith:EWNRYK4S

pith:1999:EWNRYK4SETWMLDMHG4MQAH5CEH

not attested not anchored not stored refs pending

Pair production of light pseudoscalar particles in strong inhomogeneous fields by the Schwinger mechanism

Eduard Masso, J.A. Grifols, K.V. Shajesh, Subhendra Mohanty

arxiv:hep-ph/9906255 v1 · 1999-06-04 · 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{EWNRYK4SETWMLDMHG4MQAH5CEH}

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	2026-05-18T02:36:27.844446Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

259b1c2b9224ecc58d873719001fa221c073c7f93399cdf13b5ef49792c85c96

Aliases

arxiv: hep-ph/9906255 · arxiv_version: hep-ph/9906255v1 · doi: 10.48550/arxiv.hep-ph/9906255 · pith_short_12: EWNRYK4SETWM · pith_short_16: EWNRYK4SETWMLDMH · pith_short_8: EWNRYK4S

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/EWNRYK4SETWMLDMHG4MQAH5CEH \
  | 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: 259b1c2b9224ecc58d873719001fa221c073c7f93399cdf13b5ef49792c85c96

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6dc8c445ef4ec51c4644f7a0fde0f1c91b1bcee99e558e0f9fc858995ce803bd",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-ph",
    "submitted_at": "1999-06-04T13:16:49Z",
    "title_canon_sha256": "6dcd2e712d8341f8cc73883b6c306942c31c608c5ded26f6d7846efe1e6a1212"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-ph/9906255",
    "kind": "arxiv",
    "version": 1
  }
}