Pith Number

pith:QSHULMBT

pith:2015:QSHULMBTJ3YP4CNYNYGT7YHIMT

not attested not anchored not stored refs pending

Curvature and the c-projective mobility of Kaehler metrics with hamiltonian 2-forms

David M.J. Calderbank, Stefan Rosemann, Vladimir S. Matveev

arxiv:1501.04841 v2 · 2015-01-20 · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QSHULMBTJ3YP4CNYNYGT7YHIMT}

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	2026-05-17T23:53:13.979720Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

848f45b0334ef0fe09b86e0d3fe0e864cbd41b4818400af4761ac96490914dcc

Aliases

arxiv: 1501.04841 · arxiv_version: 1501.04841v2 · doi: 10.48550/arxiv.1501.04841 · pith_short_12: QSHULMBTJ3YP · pith_short_16: QSHULMBTJ3YP4CNY · pith_short_8: QSHULMBT

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/QSHULMBTJ3YP4CNYNYGT7YHIMT \
  | 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: 848f45b0334ef0fe09b86e0d3fe0e864cbd41b4818400af4761ac96490914dcc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6fa1ccaf406e93649c49d2660144256eb4e63227894315d8ff7a404cedf7008d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2015-01-20T15:14:02Z",
    "title_canon_sha256": "65e74799da035ed33a63fc6c3d1e0002c3c0184cce30212d06cb86ac024e7ab6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.04841",
    "kind": "arxiv",
    "version": 2
  }
}