Pith Number

pith:JZBSILHW

pith:1993:JZBSILHW5LGZYGK7QHPFJIPBIM

not attested not anchored not stored refs pending

Open Strings in Constant Electric and Magnetic Fields

Massimo Porrati

arxiv:hep-th/9309114 v1 · 1993-09-21 · 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{JZBSILHW5LGZYGK7QHPFJIPBIM}

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

The explicit Lorentz invariant QED pair production rates from superstrings

Receipt and verification

First computed	2026-07-04T14:32:38.720771Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4e43242cf6eacd9c195f81de54a1e1432515796336f8ae99f4eb0d8f7c6e5827

Aliases

arxiv: hep-th/9309114 · arxiv_version: hep-th/9309114v1 · doi: 10.48550/arxiv.hep-th/9309114 · pith_short_12: JZBSILHW5LGZ · pith_short_16: JZBSILHW5LGZYGK7 · pith_short_8: JZBSILHW

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/JZBSILHW5LGZYGK7QHPFJIPBIM \
  | 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: 4e43242cf6eacd9c195f81de54a1e1432515796336f8ae99f4eb0d8f7c6e5827

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d94095b15371f2ccedc42a8b2a77b99922b48b6a19bd5c0b0a8757becc5edea",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "1993-09-21T18:59:57Z",
    "title_canon_sha256": "0ff35c5b71b176ab8e1b3625b1ba40920dafbdcf99a5b3ec17452770d728f63a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/9309114",
    "kind": "arxiv",
    "version": 1
  }
}