Pith Number

pith:LSFSAIDR

pith:2019:LSFSAIDRHNBQUJO5O53QQVHCIZ

not attested not anchored not stored refs pending

A characterization of Thurston's Master Teapot

Chenxi Wu, Kathryn Lindsey

arxiv:1909.10675 v2 · 2019-09-24 · math.DS · 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{LSFSAIDRHNBQUJO5O53QQVHCIZ}

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	2026-07-05T01:15:55.475215Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5c8b2020713b430a25dd77770854e24669d3e72bbff9d54cbdea33e84f1534df

Aliases

arxiv: 1909.10675 · arxiv_version: 1909.10675v2 · doi: 10.48550/arxiv.1909.10675 · pith_short_12: LSFSAIDRHNBQ · pith_short_16: LSFSAIDRHNBQUJO5 · pith_short_8: LSFSAIDR

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/LSFSAIDRHNBQUJO5O53QQVHCIZ \
  | 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: 5c8b2020713b430a25dd77770854e24669d3e72bbff9d54cbdea33e84f1534df

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c22eb062721b8a2507bd8523e2f50bd85069a570118bfc7aa8b9306fa1f6a45a",
    "cross_cats_sorted": [
      "math.GT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2019-09-24T01:42:38Z",
    "title_canon_sha256": "56792441e70b13f4f8bd69cff5899f0cba800a215e787faefa2419decad6ae4c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.10675",
    "kind": "arxiv",
    "version": 2
  }
}