Pith Number

pith:BBOCTQQS

pith:2021:BBOCTQQSSJFOOGPVQPVFKLARCS

not attested not anchored not stored refs pending

Reeb flows without simple global surfaces of section

Juno Kim, Otto van Koert, Yonghwan Kim

arxiv:2104.03728 v2 · 2021-04-08 · 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{BBOCTQQSSJFOOGPVQPVFKLARCS}

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	2026-07-05T05:48:30.412378Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

085c29c212924ae719f583ea552c1114824c995dbb9900402964ec69854e1300

Aliases

arxiv: 2104.03728 · arxiv_version: 2104.03728v2 · doi: 10.48550/arxiv.2104.03728 · pith_short_12: BBOCTQQSSJFO · pith_short_16: BBOCTQQSSJFOOGPV · pith_short_8: BBOCTQQS

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/BBOCTQQSSJFOOGPVQPVFKLARCS \
  | 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: 085c29c212924ae719f583ea552c1114824c995dbb9900402964ec69854e1300

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7ddeacbe649165f536314ebe66b98e041214e418a1e5a6f9e109fb01c1fdf162",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "math.SG",
    "submitted_at": "2021-04-08T12:23:50Z",
    "title_canon_sha256": "fca7b8c5a2c8a4ec3b8daa148ad2acae39a9d012c7d06a264ab7018efe70f416"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.03728",
    "kind": "arxiv",
    "version": 2
  }
}