Pith Number

pith:QVLZBY3W

pith:1999:QVLZBY3WTE3UMT653IIOGLGMXJ

not attested not anchored not stored refs pending

D-branes on some one- and two-parameter Calabi-Yau hypersurfaces

Emanuel Scheidegger (LMU, Munich)

arxiv:hep-th/9912188 v2 · 1999-12-21 · 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{QVLZBY3WTE3UMT653IIOGLGMXJ}

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	2026-07-04T16:15:05.672565Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

855790e3769937464fddda10e32cccba54a5d018c42a2efccb8591fe56d1ddce

Aliases

arxiv: hep-th/9912188 · arxiv_version: hep-th/9912188v2 · doi: 10.48550/arxiv.hep-th/9912188 · pith_short_12: QVLZBY3WTE3U · pith_short_16: QVLZBY3WTE3UMT65 · pith_short_8: QVLZBY3W

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/QVLZBY3WTE3UMT653IIOGLGMXJ \
  | 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: 855790e3769937464fddda10e32cccba54a5d018c42a2efccb8591fe56d1ddce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d40aec25c32a619ac8006eb31a65d9f950f897a34b2130f1a43e6f3e754aa1b4",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "1999-12-21T01:11:17Z",
    "title_canon_sha256": "f96988b390c990d7e7ce53de32c2656762920a20a7eed89cf386ba3517828ae1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/9912188",
    "kind": "arxiv",
    "version": 2
  }
}