Pith Number

pith:7QOYJ33C

pith:2026:7QOYJ33CFD7KVYEQMLFM7Q5YIG

not attested not anchored not stored refs pending

Calabi-Yau Deformation Quantization

Jakob Ulmer

arxiv:2607.25438 v1 · 2026-07-28 · math.QA · hep-th · math.AG · math.AT

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7QOYJ33CFD7KVYEQMLFM7Q5YIG}

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	2026-07-29T01:25:15.577862Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc1d84ef6228feaae09062cacfc3b841b2e82d459621b924e68a26a480c76792

Aliases

arxiv: 2607.25438 · arxiv_version: 2607.25438v1 · doi: 10.48550/arxiv.2607.25438 · pith_short_12: 7QOYJ33CFD7K · pith_short_16: 7QOYJ33CFD7KVYEQ · pith_short_8: 7QOYJ33C

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/7QOYJ33CFD7KVYEQMLFM7Q5YIG \
  | 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: fc1d84ef6228feaae09062cacfc3b841b2e82d459621b924e68a26a480c76792

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6e338018d8a4fef3af662cbe9d05fd00e97c1e82ff5bc574a945d464b7799ffb",
    "cross_cats_sorted": [
      "hep-th",
      "math.AG",
      "math.AT"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "math.QA",
    "submitted_at": "2026-07-28T08:32:22Z",
    "title_canon_sha256": "49c9aa4ae28b0e3bad0f332c2991f38466bb1043dfc8c72c00ea5b8b3266421c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.25438",
    "kind": "arxiv",
    "version": 1
  }
}