Pith Number

pith:QQA4G64L

pith:2007:QQA4G64LXGUNQNSREZF6OIIKOC

not attested not anchored not stored refs pending

Chern numbers and the geometry of partial flag manifolds

D. Kotschick, S. Terzic

arxiv:0709.3026 v2 · 2007-09-19 · math.DG · 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{QQA4G64LXGUNQNSREZF6OIIKOC}

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	2026-05-18T03:35:26.894251Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8401c37b8bb9a8d83651264be7210a7092f2e3e621c537e6a4b70022a90f9cbb

Aliases

arxiv: 0709.3026 · arxiv_version: 0709.3026v2 · doi: 10.48550/arxiv.0709.3026 · pith_short_12: QQA4G64LXGUN · pith_short_16: QQA4G64LXGUNQNSR · pith_short_8: QQA4G64L

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/QQA4G64LXGUNQNSREZF6OIIKOC \
  | 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: 8401c37b8bb9a8d83651264be7210a7092f2e3e621c537e6a4b70022a90f9cbb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "af75d04415b35d499a0bfd50d2390b4fdbdd513ad38014f6e95aadef9ce2ba8e",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "",
    "primary_cat": "math.DG",
    "submitted_at": "2007-09-19T14:38:01Z",
    "title_canon_sha256": "b3cfc37f195e0ed6f4a1ed19db6038c8cc84b63638bde2b93ead6fa4c9ae6c66"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0709.3026",
    "kind": "arxiv",
    "version": 2
  }
}