Pith Number

pith:D2Z6ZZLJ

pith:2012:D2Z6ZZLJB65LH6CSJUDDBKANM4

not attested not anchored not stored refs pending

Classification of double flag varieties of complexity 0 and 1

Elizaveta Ponomareva

arxiv:1204.1988 v1 · 2012-04-09 · 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{D2Z6ZZLJB65LH6CSJUDDBKANM4}

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	2026-05-18T01:57:55.590785Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1eb3ece5690fbab3f8524d0630a80d673e5078eaf178e3320ce3e1450701d188

Aliases

arxiv: 1204.1988 · arxiv_version: 1204.1988v1 · doi: 10.48550/arxiv.1204.1988 · pith_short_12: D2Z6ZZLJB65L · pith_short_16: D2Z6ZZLJB65LH6CS · pith_short_8: D2Z6ZZLJ

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/D2Z6ZZLJB65LH6CSJUDDBKANM4 \
  | 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: 1eb3ece5690fbab3f8524d0630a80d673e5078eaf178e3320ce3e1450701d188

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "434b844a19edd9c342930871adb7e66828bf5e67b02703cf8021086848f6978b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2012-04-09T20:50:30Z",
    "title_canon_sha256": "2c49ad55e6a30f52a8d86afdc955055c18c7eb0a0cdef57a908543a2ede5f9d4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.1988",
    "kind": "arxiv",
    "version": 1
  }
}