Pith Number

pith:435MRSJZ

pith:2017:435MRSJZE2H2PI7X3Y5RAIREUJ

not attested not anchored not stored refs pending

On Normal Forms of Complex Points of codimension 2 submanifolds

Marko Slapar, Tadej Star\v{c}i\v{c}

arxiv:1709.07812 v3 · 2017-09-22 · math.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{435MRSJZE2H2PI7X3Y5RAIREUJ}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T00:24:09.836590Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e6fac8c939268fa7a3f7de3b102224a264c257231ca705ad139a1d9dd69f2c9f

Aliases

arxiv: 1709.07812 · arxiv_version: 1709.07812v3 · doi: 10.48550/arxiv.1709.07812 · pith_short_12: 435MRSJZE2H2 · pith_short_16: 435MRSJZE2H2PI7X · pith_short_8: 435MRSJZ

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/435MRSJZE2H2PI7X3Y5RAIREUJ \
  | 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: e6fac8c939268fa7a3f7de3b102224a264c257231ca705ad139a1d9dd69f2c9f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "deafa6244e2a70f6e362c06c79903f5bb81b7d881c7f039ab9d2eecb96220e8d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2017-09-22T15:36:53Z",
    "title_canon_sha256": "27ed467ce7542270c24a40497a9f341cd16c8c914c49027b0aa87d924f783ead"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.07812",
    "kind": "arxiv",
    "version": 3
  }
}