Pith Number

pith:IRDJTOZM

pith:2013:IRDJTOZMJGLYFVTCGPR6FRZ33C

not attested not anchored not stored refs pending

Extremal Sasakian Geometry on S^3-bundles over Riemann Surfaces

Charles P. Boyer, Christina W. T{\o}nnesen-Friedman

arxiv:1302.0776 v1 · 2013-02-04 · math.DG · math.SG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IRDJTOZMJGLYFVTCGPR6FRZ33C}

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	2026-05-18T02:29:32.493577Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

444699bb2c499782d66233e3e2c73bd8a450c85a37e4d251acd84e45bbf9ff60

Aliases

arxiv: 1302.0776 · arxiv_version: 1302.0776v1 · doi: 10.48550/arxiv.1302.0776 · pith_short_12: IRDJTOZMJGLY · pith_short_16: IRDJTOZMJGLYFVTC · pith_short_8: IRDJTOZM

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/IRDJTOZMJGLYFVTCGPR6FRZ33C \
  | 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: 444699bb2c499782d66233e3e2c73bd8a450c85a37e4d251acd84e45bbf9ff60

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3425fab72967b597cb78fda220c67f929ed61a087a850e66446358d579fb2d96",
    "cross_cats_sorted": [
      "math.SG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2013-02-04T17:56:15Z",
    "title_canon_sha256": "d26b4a8e0cd33d5dee4d7784bfbfeee7f2847380e0ef9a680411cc0aba0a3fe6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.0776",
    "kind": "arxiv",
    "version": 1
  }
}