Pith Number

pith:YMUUSWNH

pith:2026:YMUUSWNHB3LAESZUA3I5ETORTQ

not attested not anchored not stored refs pending

Homological rigidity and Schur rigidity of Schubert varieties in rational homogeneous spaces

Cong Ding, Qifeng Li

arxiv:2607.18593 v1 · 2026-07-21 · math.AG · math.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YMUUSWNHB3LAESZUA3I5ETORTQ}

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	2026-07-22T00:22:55.820421Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c3294959a70ed6024b3406d1d24dd19c3d367606106f2d8d688440b077d1de1c

Aliases

arxiv: 2607.18593 · arxiv_version: 2607.18593v1 · doi: 10.48550/arxiv.2607.18593 · pith_short_12: YMUUSWNHB3LA · pith_short_16: YMUUSWNHB3LAESZU · pith_short_8: YMUUSWNH

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/YMUUSWNHB3LAESZUA3I5ETORTQ \
  | 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: c3294959a70ed6024b3406d1d24dd19c3d367606106f2d8d688440b077d1de1c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d334075afb6b4422d7cbc1488f2db89c9379e7e14f9bf3a910a45523c68e1789",
    "cross_cats_sorted": [
      "math.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2026-07-21T00:02:52Z",
    "title_canon_sha256": "3b149fad9009fce05fe96660818a78bdeeae0ff5291eed07bc5584ccfbfb7b62"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.18593",
    "kind": "arxiv",
    "version": 1
  }
}