Pith Number

pith:4VLO6NOZ

pith:2025:4VLO6NOZQCLP7OEXWK2YCYG3EG

not attested not anchored not stored refs pending

Homoclinic orbits, Reeb chords and nice Birkhoff sections for Reeb flows in 3D

Ana Rechtman, Umberto Hryniewicz, Vincent Colin

arxiv:2501.11725 v1 · 2025-01-20 · math.SG · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4VLO6NOZQCLP7OEXWK2YCYG3EG}

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.

Cited by

1 paper in Pith

A Sm\"org\aa sbord of (bi)contact structures, Reeb flows and pseudo-Anosov flows

Receipt and verification

First computed	2026-07-05T10:03:13.071159Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e556ef35d98096ffb897b2b58160db21a708efe9a84901aa4c9ebd54393d175f

Aliases

arxiv: 2501.11725 · arxiv_version: 2501.11725v1 · doi: 10.48550/arxiv.2501.11725 · pith_short_12: 4VLO6NOZQCLP · pith_short_16: 4VLO6NOZQCLP7OEX · pith_short_8: 4VLO6NOZ

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/4VLO6NOZQCLP7OEXWK2YCYG3EG \
  | 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: e556ef35d98096ffb897b2b58160db21a708efe9a84901aa4c9ebd54393d175f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bb6849bf1fcad817e36ce3821174b4cb8ac3a669869e9ced489f5ab4481eeac7",
    "cross_cats_sorted": [
      "math.DS"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.SG",
    "submitted_at": "2025-01-20T20:21:47Z",
    "title_canon_sha256": "c40f297c57638fe66fb780f73d68d36aeeabb9d5fe7bc3fa29136cebe2d73232"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.11725",
    "kind": "arxiv",
    "version": 1
  }
}