Pith Number

pith:TH67NX3B

pith:2014:TH67NX3BPV7LKCI6QDI7TTS2AU

not attested not anchored not stored refs pending

An example of a compact non-C-analytic real subvariety of ${\mathbb R}^3$

Jiri Lebl

arxiv:1412.4838 v2 · 2014-12-15 · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TH67NX3BPV7LKCI6QDI7TTS2AU}

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	2026-07-05T02:32:11.957118Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

99fdf6df617d7eb5091e80d1f9ce5a050a1459c7fbbeb444caa54101adf0a245

Aliases

arxiv: 1412.4838 · arxiv_version: 1412.4838v2 · doi: 10.48550/arxiv.1412.4838 · pith_short_12: TH67NX3BPV7L · pith_short_16: TH67NX3BPV7LKCI6 · pith_short_8: TH67NX3B

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/TH67NX3BPV7LKCI6QDI7TTS2AU \
  | 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: 99fdf6df617d7eb5091e80d1f9ce5a050a1459c7fbbeb444caa54101adf0a245

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c850dbc2022b3c9e14d43c68a977e685405566d6cea17467f0a131b62515000a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2014-12-15T23:43:40Z",
    "title_canon_sha256": "94560c38bb860f72659cd0dc920c903850737deb24578b0104f0de442afe2710"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.4838",
    "kind": "arxiv",
    "version": 2
  }
}