Pith Number

pith:DANHCF2Z

pith:2000:DANHCF2ZBVT5SKYD6LDHIJZZGO

not attested not anchored not stored refs pending

Modular Invariance in Superstring on Calabi-Yau n-fold with A-D-E Singularity

Tohru Eguchi, Yuji Sugawara

arxiv:hep-th/0002100 v2 · 2000-02-12 · 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{DANHCF2ZBVT5SKYD6LDHIJZZGO}

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	2026-07-04T15:20:55.425174Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

181a7117590d67d92b03f2c674273933be869d30ac9854a256d2902cdcb2ec42

Aliases

arxiv: hep-th/0002100 · arxiv_version: hep-th/0002100v2 · doi: 10.48550/arxiv.hep-th/0002100 · pith_short_12: DANHCF2ZBVT5 · pith_short_16: DANHCF2ZBVT5SKYD · pith_short_8: DANHCF2Z

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/DANHCF2ZBVT5SKYD6LDHIJZZGO \
  | 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: 181a7117590d67d92b03f2c674273933be869d30ac9854a256d2902cdcb2ec42

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a357e09762a159ecef76027d8d0fc9e179e4fe1d102d984f560480a36b62f5be",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "2000-02-12T09:34:13Z",
    "title_canon_sha256": "a711adf63c0e69734c5ab71c946265f1261296c3a919720c5586d24963207f5a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/0002100",
    "kind": "arxiv",
    "version": 2
  }
}