Pith Number

pith:ULALZVYS

pith:2025:ULALZVYSW55VLF7JVELLKHMHCD

not attested not anchored not stored refs pending

Almost Calabi-Yau with torsion 6-manifolds and the instanton condition

Luis Ugarte, Stefan Ivanov

arxiv:2507.01655 v2 · 2025-07-02 · math.DG · 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{ULALZVYSW55VLF7JVELLKHMHCD}

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	2026-07-05T11:34:52.885359Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a2c0bcd712b77b5597e9a916b51d8710f8116b707be2376235ec27572a381719

Aliases

arxiv: 2507.01655 · arxiv_version: 2507.01655v2 · doi: 10.48550/arxiv.2507.01655 · pith_short_12: ULALZVYSW55V · pith_short_16: ULALZVYSW55VLF7J · pith_short_8: ULALZVYS

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/ULALZVYSW55VLF7JVELLKHMHCD \
  | 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: a2c0bcd712b77b5597e9a916b51d8710f8116b707be2376235ec27572a381719

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "34cc29d405d7efa3fd0f8ced7e55dd0f78e51af6975b9ba53e49e33efedff0f4",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2025-07-02T12:32:45Z",
    "title_canon_sha256": "25a7ea2c9903d9e5f8e9a092b4221bd7588e786a32a6ecde439fbd978fa478c8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.01655",
    "kind": "arxiv",
    "version": 2
  }
}