Pith Number

pith:BKBTBFOD

pith:1998:BKBTBFODCZ5F7NPSRE7TJZFRHE

not attested not anchored not stored refs pending

D-branes in curved spacetime: Nappi-Witten background

Arkady Tseytlin, Sonia Stanciu

arxiv:hep-th/9805006 v2 · 1998-05-01 · 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{BKBTBFODCZ5F7NPSRE7TJZFRHE}

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	2026-07-04T16:09:46.982010Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0a833095c3167a5fb5f2893f34e4b139225f2b7a989570785cf648684df6e1fa

Aliases

arxiv: hep-th/9805006 · arxiv_version: hep-th/9805006v2 · doi: 10.48550/arxiv.hep-th/9805006 · pith_short_12: BKBTBFODCZ5F · pith_short_16: BKBTBFODCZ5F7NPS · pith_short_8: BKBTBFOD

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/BKBTBFODCZ5F7NPSRE7TJZFRHE \
  | 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: 0a833095c3167a5fb5f2893f34e4b139225f2b7a989570785cf648684df6e1fa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "94ef73f4f1f89d825c0fb3c1fd939367ef50f548ee9bd97a3ef2fc3f9bc072f7",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "1998-05-01T19:56:33Z",
    "title_canon_sha256": "bdfd0525149c7001779635195ca947c9c1529433148a6d034d127ad655094148"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/9805006",
    "kind": "arxiv",
    "version": 2
  }
}