Pith Number

pith:KMAHSACM

pith:2008:KMAHSACMXZE6RTYHWQORIV4G3Z

not attested not anchored not stored refs pending

Non-degenerate quadratic laminations

A. Blokh, D. Childers, J. Mayer, L. Oversteegen

arxiv:0809.2019 v1 · 2008-09-11 · 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{KMAHSACMXZE6RTYHWQORIV4G3Z}

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	2026-05-18T01:22:10.787513Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

530079004cbe49e8cf07b41d145786de6be0054696d89caa18351d3d03672898

Aliases

arxiv: 0809.2019 · arxiv_version: 0809.2019v1 · doi: 10.48550/arxiv.0809.2019 · pith_short_12: KMAHSACMXZE6 · pith_short_16: KMAHSACMXZE6RTYH · pith_short_8: KMAHSACM

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/KMAHSACMXZE6RTYHWQORIV4G3Z \
  | 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: 530079004cbe49e8cf07b41d145786de6be0054696d89caa18351d3d03672898

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f529f4f811f6e673a0cfabed579fe23d602bb4f140a363fc64a4d53e6cfb2e9d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2008-09-11T15:10:04Z",
    "title_canon_sha256": "cd29679f6969ca5827c02ff7539d1b212d2e6473b9b9739ee361c5f6f8e903b7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.2019",
    "kind": "arxiv",
    "version": 1
  }
}