Pith Number

pith:C4PHNFDU

pith:1993:C4PHNFDUNXIW7OV64VSYW32TWI

not attested not anchored not stored refs pending

A New Sigma Model Action for the Four-Dimensional Green-Schwarz Heterotic Superstring

Nathan Berkovits

arxiv:hep-th/9303025 v1 · 1993-03-03 · 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{C4PHNFDUNXIW7OV64VSYW32TWI}

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	2026-05-18T04:17:35.820953Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

171e7694746dd16fbabee5658b6f53b222923edd285ec970a7b70caabfdadbc4

Aliases

arxiv: hep-th/9303025 · arxiv_version: hep-th/9303025v1 · doi: 10.48550/arxiv.hep-th/9303025 · pith_short_12: C4PHNFDUNXIW · pith_short_16: C4PHNFDUNXIW7OV6 · pith_short_8: C4PHNFDU

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/C4PHNFDUNXIW7OV64VSYW32TWI \
  | 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: 171e7694746dd16fbabee5658b6f53b222923edd285ec970a7b70caabfdadbc4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e3eb196aae5319cc6c506428b358acc7b1ecb8f82d6655331de7a66d3290b281",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "1993-03-03T16:18:00Z",
    "title_canon_sha256": "ed0e72ca6e5c1d60e9759533a79533779eafc7685542e715c82447de387f65da"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/9303025",
    "kind": "arxiv",
    "version": 1
  }
}