Pith Number

pith:BGMUQFVR

pith:2026:BGMUQFVRO56HBW6XDQH52IDTAG

not attested not anchored not stored refs pending

The global nilpotent cone for universal curves

David Nadler, Zhiwei Yun

arxiv:2603.01261 v2 · 2026-03-01 · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BGMUQFVRO56HBW6XDQH52IDTAG}

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	2026-05-20T00:05:42.692471Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

09994816b1777c70dbd71c0fdd207301a4c61f9e9b1f5b36d143875b4e27cd68

Aliases

arxiv: 2603.01261 · arxiv_version: 2603.01261v2 · doi: 10.48550/arxiv.2603.01261 · pith_short_12: BGMUQFVRO56H · pith_short_16: BGMUQFVRO56HBW6X · pith_short_8: BGMUQFVR

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/BGMUQFVRO56HBW6XDQH52IDTAG \
  | 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: 09994816b1777c70dbd71c0fdd207301a4c61f9e9b1f5b36d143875b4e27cd68

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cbacbb2a688e5c35cc5ea268a9c65505ee011345d81e0d2ce7445900e4584d31",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2026-03-01T20:34:00Z",
    "title_canon_sha256": "b452b48af58beefa3840fd038f66f0c48e40d663ee9b7098492b941b7ef4bdf1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2603.01261",
    "kind": "arxiv",
    "version": 2
  }
}