Pith Number

pith:LVOBKQ2H

pith:2017:LVOBKQ2HX4PS67TWGUSQ4ZXNVZ

not attested not anchored not stored refs pending

On the topology of hypocycloids

E. Artal Bartolo, J.I. Cogolludo-Agust\'in

arxiv:1703.08308 v1 · 2017-03-24 · 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{LVOBKQ2HX4PS67TWGUSQ4ZXNVZ}

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	2026-05-18T00:16:56.540961Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5d5c154347bf1f2f7e7635250e66edae741741dd0fb22235f279f9558e91cefc

Aliases

arxiv: 1703.08308 · arxiv_version: 1703.08308v1 · doi: 10.48550/arxiv.1703.08308 · pith_short_12: LVOBKQ2HX4PS · pith_short_16: LVOBKQ2HX4PS67TW · pith_short_8: LVOBKQ2H

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/LVOBKQ2HX4PS67TWGUSQ4ZXNVZ \
  | 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: 5d5c154347bf1f2f7e7635250e66edae741741dd0fb22235f279f9558e91cefc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d81b6a33a3df4af56a703a5ac188fe41ba2a802456819a9ee66274f1605b5a63",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2017-03-24T08:24:44Z",
    "title_canon_sha256": "deec32f0e3dbabb162186c1fcd766240f3950e43bf4d3f44cbb5cee5d12c126f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.08308",
    "kind": "arxiv",
    "version": 1
  }
}