Pith Number

pith:PQFKZR2Z

pith:1992:PQFKZR2Z35N4S5EYOHSSVF2LGC

not attested not anchored not stored refs pending

Lorentz-Covariant Green-Schwarz Superstring Amplitudes

Nathan Berkovits

arxiv:hep-th/9211025 v1 · 1992-11-04 · 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{PQFKZR2Z35N4S5EYOHSSVF2LGC}

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	2026-05-18T04:17:35.886779Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c0aacc759df5bc9749871e52a974b308caeb05ae1d0d48a14b95072da648a7a

Aliases

arxiv: hep-th/9211025 · arxiv_version: hep-th/9211025v1 · doi: 10.48550/arxiv.hep-th/9211025 · pith_short_12: PQFKZR2Z35N4 · pith_short_16: PQFKZR2Z35N4S5EY · pith_short_8: PQFKZR2Z

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/PQFKZR2Z35N4S5EYOHSSVF2LGC \
  | 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: 7c0aacc759df5bc9749871e52a974b308caeb05ae1d0d48a14b95072da648a7a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6e0d3e1d144c4c3324d04c65e6e9487550369e83aa51ed5ce0f5d2315e3a49ed",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "1992-11-04T15:38:00Z",
    "title_canon_sha256": "bbbed386d43841f0dec7c69547905feab1ebe62c31dcfb1c3b2922bfba0e7487"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/9211025",
    "kind": "arxiv",
    "version": 1
  }
}