Pith Number

pith:QBDWI6EQ

pith:2011:QBDWI6EQJMZVCFSYFG5D6OEORQ

not attested not anchored not stored refs pending

On some invariants of orbits in the flag variety under a symmetric subgroup

Jiang-Hua Lu, Sam Evens

arxiv:1104.2640 v1 · 2011-04-13 · math.RT · 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{QBDWI6EQJMZVCFSYFG5D6OEORQ}

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	2026-05-18T04:24:27.164235Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80476478904b3351165829ba3f388e8c185a09929e765b85da7562c6253432d0

Aliases

arxiv: 1104.2640 · arxiv_version: 1104.2640v1 · doi: 10.48550/arxiv.1104.2640 · pith_short_12: QBDWI6EQJMZV · pith_short_16: QBDWI6EQJMZVCFSY · pith_short_8: QBDWI6EQ

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/QBDWI6EQJMZVCFSYFG5D6OEORQ \
  | 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: 80476478904b3351165829ba3f388e8c185a09929e765b85da7562c6253432d0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "39b771f3820c1466f4e5fc083df33656ff9e49455398f2c7f8b362da12afb87b",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RT",
    "submitted_at": "2011-04-13T22:54:27Z",
    "title_canon_sha256": "2797ba88640e5657f77c3409e1f4691f0f63934ef085d5416f70dbd71e63cf42"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.2640",
    "kind": "arxiv",
    "version": 1
  }
}