Pith Number

pith:C357KX4V

pith:2018:C357KX4V5RPD46ZNDFP2CRE5QU

not attested not anchored not stored refs pending

Homeomorphisms and intersection number

Athanase Papadopoulos (IRMA), Ken'ichi Ohshika

arxiv:1804.10502 v1 · 2018-04-27 · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{C357KX4V5RPD46ZNDFP2CRE5QU}

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	2026-05-18T00:17:20.570226Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

16fbf55f95ec5e3e7b2d195fa1449d8525da69514c5c5ab852d2589d93d95a79

Aliases

arxiv: 1804.10502 · arxiv_version: 1804.10502v1 · doi: 10.48550/arxiv.1804.10502 · pith_short_12: C357KX4V5RPD · pith_short_16: C357KX4V5RPD46ZN · pith_short_8: C357KX4V

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/C357KX4V5RPD46ZNDFP2CRE5QU \
  | 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: 16fbf55f95ec5e3e7b2d195fa1449d8525da69514c5c5ab852d2589d93d95a79

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "98bdd4e8c97040b289e792a9346fa5c049bd4d759df3b0572d9bd2e5b259d230",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2018-04-27T13:42:19Z",
    "title_canon_sha256": "fcaa1bc6a4cf6ef4068fa566850090c38b5f66c522cdceac57301b793be0a0d3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.10502",
    "kind": "arxiv",
    "version": 1
  }
}