Pith Number

pith:NOMSQIGF

pith:2017:NOMSQIGFOD5PB5ETBDOIQ6DG7O

not attested not anchored not stored refs pending

The homology class of a Poisson transversal

Ioan Marcut, Pedro Frejlich

arxiv:1704.04724 v1 · 2017-04-16 · 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{NOMSQIGFOD5PB5ETBDOIQ6DG7O}

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	2026-05-18T00:46:17.877203Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6b992820c570faf0f49308dc887866fba3847ff212d716d4388fe9413f06dc0f

Aliases

arxiv: 1704.04724 · arxiv_version: 1704.04724v1 · doi: 10.48550/arxiv.1704.04724 · pith_short_12: NOMSQIGFOD5P · pith_short_16: NOMSQIGFOD5PB5ET · pith_short_8: NOMSQIGF

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/NOMSQIGFOD5PB5ETBDOIQ6DG7O \
  | 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: 6b992820c570faf0f49308dc887866fba3847ff212d716d4388fe9413f06dc0f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "39ecccd5f09701aef4be157f7ccbbb00078b2bdc4bb208e568c6a356ff608f0b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SG",
    "submitted_at": "2017-04-16T05:07:27Z",
    "title_canon_sha256": "d6fcbbd72dd33f36b9af91c9aa517e53afa1d5d4966c7aab089c63eadb028877"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.04724",
    "kind": "arxiv",
    "version": 1
  }
}