Pith Number

pith:7UQRZQQW

pith:1997:7UQRZQQWRZNPTCX363FAGICKPU

not attested not anchored not stored refs pending

Central Extensions of Supersymmetry in Four and Three Dimensions

M. Porrati, S. Ferrara

arxiv:hep-th/9711116 v2 · 1997-11-16 · 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{7UQRZQQWRZNPTCX363FAGICKPU}

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	2026-05-18T04:35:16.074140Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd211cc2168e5af98afbf6ca03204a7d03a4570dde05a83b96c498ce075d7a48

Aliases

arxiv: hep-th/9711116 · arxiv_version: hep-th/9711116v2 · doi: 10.48550/arxiv.hep-th/9711116 · pith_short_12: 7UQRZQQWRZNP · pith_short_16: 7UQRZQQWRZNPTCX3 · pith_short_8: 7UQRZQQW

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/7UQRZQQWRZNPTCX363FAGICKPU \
  | 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: fd211cc2168e5af98afbf6ca03204a7d03a4570dde05a83b96c498ce075d7a48

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7e9584c09a1b306f004860ab87d70714db91f4f258d1390fadeeb524149578ee",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "1997-11-16T21:21:03Z",
    "title_canon_sha256": "0ad09f86981978279f8ce2302be8071f1a012968678cc9870b675eeebb984a3d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/9711116",
    "kind": "arxiv",
    "version": 2
  }
}