Pith Number

pith:Y5GX33JB

pith:2023:Y5GX33JBKZ7G2Q5I2GFF7EN33L

not attested not anchored not stored refs pending

Coadjoint orbits of area-preserving diffeomorphisms of non-orientable surfaces

Anton Izosimov, Boris Khesin, Ilia Kirillov

arxiv:2304.09354 v2 · 2023-04-19 · 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{Y5GX33JBKZ7G2Q5I2GFF7EN33L}

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	2026-07-05T08:04:57.247045Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c74d7ded21567e6d43a8d18a5f91bbdac398682646d09ebb688aabd714b6489f

Aliases

arxiv: 2304.09354 · arxiv_version: 2304.09354v2 · doi: 10.48550/arxiv.2304.09354 · pith_short_12: Y5GX33JBKZ7G · pith_short_16: Y5GX33JBKZ7G2Q5I · pith_short_8: Y5GX33JB

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/Y5GX33JBKZ7G2Q5I2GFF7EN33L \
  | 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: c74d7ded21567e6d43a8d18a5f91bbdac398682646d09ebb688aabd714b6489f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2810072dea680267a7fca703c3baf5198fea2fbf8f9591ee50ef68616d4b52c5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SG",
    "submitted_at": "2023-04-19T00:25:07Z",
    "title_canon_sha256": "58aee6033af7a56b2064655d38b376fcfa5f11d7910baf7d58136ef0d62960da"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2304.09354",
    "kind": "arxiv",
    "version": 2
  }
}