Pith Number

pith:K3P254AJ

pith:2015:K3P254AJDGAU352O7XREVQY7HN

not attested not anchored not stored refs pending

Hyperbolic rational homology spheres not admitting fillable contact structures

Amey Kaloti, Bulent Tosun

arxiv:1508.07300 v2 · 2015-08-28 · math.GT · 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{K3P254AJDGAU352O7XREVQY7HN}

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	2026-05-18T01:33:23.776444Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

56dfaef00919814df74efde24ac31f3b68d9cc00ebef6a566fe395296386f263

Aliases

arxiv: 1508.07300 · arxiv_version: 1508.07300v2 · doi: 10.48550/arxiv.1508.07300 · pith_short_12: K3P254AJDGAU · pith_short_16: K3P254AJDGAU352O · pith_short_8: K3P254AJ

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/K3P254AJDGAU352O7XREVQY7HN \
  | 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: 56dfaef00919814df74efde24ac31f3b68d9cc00ebef6a566fe395296386f263

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c506abea387a21a2a22e3667f258ee435bf531d1f08909a74b9cc1ed22dc8ab",
    "cross_cats_sorted": [
      "math.SG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2015-08-28T18:14:17Z",
    "title_canon_sha256": "15c3ff4a157693ae625bc323e3d966aa2696b3f030be3fcc8b32ab9fb0e7dd14"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.07300",
    "kind": "arxiv",
    "version": 2
  }
}