Pith Number

pith:3XMZYL5F

pith:2019:3XMZYL5FHN3NBZVYNTYP3E5JU4

not attested not anchored not stored refs pending

Non-existence of Global Transverse Poincar\'{e} Sections

Roisin Braddell

arxiv:1905.10633 v1 · 2019-05-25 · 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{3XMZYL5FHN3NBZVYNTYP3E5JU4}

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	2026-05-17T23:45:05.733422Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ddd99c2fa53b76d0e6b86cf0fd93a9a714828a94f717306aac8d87dd36ebd7a8

Aliases

arxiv: 1905.10633 · arxiv_version: 1905.10633v1 · doi: 10.48550/arxiv.1905.10633 · pith_short_12: 3XMZYL5FHN3N · pith_short_16: 3XMZYL5FHN3NBZVY · pith_short_8: 3XMZYL5F

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/3XMZYL5FHN3NBZVYNTYP3E5JU4 \
  | 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: ddd99c2fa53b76d0e6b86cf0fd93a9a714828a94f717306aac8d87dd36ebd7a8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "16550e2518ad3d146b0e2bf999500cb7d8e2975cac1a93b68037d150e9ebb99a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SG",
    "submitted_at": "2019-05-25T17:00:34Z",
    "title_canon_sha256": "1ca5944c5b80b0da1ec3d745b08f2c7cdf92f50de1c69780b87e5a05faf140f4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.10633",
    "kind": "arxiv",
    "version": 1
  }
}