Pith Number

pith:KQDSWTIX

pith:2005:KQDSWTIX3CUJPBNFPM3LHQ6XSH

not attested not anchored not stored refs pending

Pure Spinor Formalism as an N=2 Topological String

Nathan Berkovits (IFT-UNESP, Sao Paulo)

arxiv:hep-th/0509120 v1 · 2005-09-15 · 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{KQDSWTIX3CUJPBNFPM3LHQ6XSH}

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 Double EFT Expansion in Quantum Gravity

Receipt and verification

First computed	2026-07-04T16:56:19.799613Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

54072b4d17d8a89785a57b36b3c3d791f51e74bc0765a4d03ea171828d6ce127

Aliases

arxiv: hep-th/0509120 · arxiv_version: hep-th/0509120v1 · doi: 10.48550/arxiv.hep-th/0509120 · pith_short_12: KQDSWTIX3CUJ · pith_short_16: KQDSWTIX3CUJPBNF · pith_short_8: KQDSWTIX

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/KQDSWTIX3CUJPBNFPM3LHQ6XSH \
  | 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: 54072b4d17d8a89785a57b36b3c3d791f51e74bc0765a4d03ea171828d6ce127

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "86d652b3b0cb3839e987bb6265cf041d02ccaded6008da432bbbda232c460f2a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "2005-09-15T18:54:07Z",
    "title_canon_sha256": "86091a76558b14e2c707704886fc36fa477f0a906456e10bb650c62ceb39385c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/0509120",
    "kind": "arxiv",
    "version": 1
  }
}