Pith Number

pith:DFFQ53CN

pith:1992:DFFQ53CNWKBO25BRCUT5YVQNEZ

not attested not anchored not stored refs pending

Strings on Curved Spacetimes: Black Holes, Torsion, and Duality

Fernando Quevedo, Paul Ginsparg

arxiv:hep-th/9202092 v1 · 1992-02-29 · 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{DFFQ53CNWKBO25BRCUT5YVQNEZ}

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	2026-05-18T04:37:44.205842Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

194b0eec4db282ed74311527dc560d2663b3544a96c3c305c60f00f05e839182

Aliases

arxiv: hep-th/9202092 · arxiv_version: hep-th/9202092v1 · doi: 10.48550/arxiv.hep-th/9202092 · pith_short_12: DFFQ53CNWKBO · pith_short_16: DFFQ53CNWKBO25BR · pith_short_8: DFFQ53CN

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/DFFQ53CNWKBO25BRCUT5YVQNEZ \
  | 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: 194b0eec4db282ed74311527dc560d2663b3544a96c3c305c60f00f05e839182

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "80a1574a35b1974825665a70e3cc1aeaad979b525ee87b72a7799bf9f28e9ecd",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "1992-02-29T14:55:00Z",
    "title_canon_sha256": "459fd5aca3f07eb8a9038f0cdb35fc20e33497abafc0b5ee0435c0bec62a6047"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/9202092",
    "kind": "arxiv",
    "version": 1
  }
}