Pith Number

pith:Q6NF4GXR

pith:2006:Q6NF4GXRMPHN4UG7GCUGXBOLHX

not attested not anchored not stored refs pending

Sasaki-Einstein 5-manifolds associated to toric 3-Sasaki manifolds

Craig van Coevering

arxiv:math/0607721 v3 · 2006-07-27 · 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{Q6NF4GXRMPHN4UG7GCUGXBOLHX}

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	2026-05-18T03:49:10.708248Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

879a5e1af163cede50df30a86b85cb3dc30137fdf9c2396ec3438f419b83083f

Aliases

arxiv: math/0607721 · arxiv_version: math/0607721v3 · doi: 10.48550/arxiv.math/0607721 · pith_short_12: Q6NF4GXRMPHN · pith_short_16: Q6NF4GXRMPHN4UG7 · pith_short_8: Q6NF4GXR

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/Q6NF4GXRMPHN4UG7GCUGXBOLHX \
  | 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: 879a5e1af163cede50df30a86b85cb3dc30137fdf9c2396ec3438f419b83083f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "009cd6d56111395a82a57b743d283dd08b1dfdde72ad681c73e90d5a9b3592fc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2006-07-27T18:23:58Z",
    "title_canon_sha256": "fff6db6509351d9b48b5eda6987742382309d6a36233fd43128d791acd63060c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0607721",
    "kind": "arxiv",
    "version": 3
  }
}