Pith Number

pith:S7662A42

pith:2010:S7662A42FU44DP2UD7KIFSNU2F

not attested not anchored not stored refs pending

Radial extension of a bi-Lipschitz parametrization of a starlike Jordan curve

David Kalaj

arxiv:1011.5204 v4 · 2010-11-23 · math.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{S7662A42FU44DP2UD7KIFSNU2F}

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	2026-05-18T03:33:14.413962Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

97fded039a2d39c1bf541fd482c9b4d151d8d243bc485db7a613e5ba5edcb899

Aliases

arxiv: 1011.5204 · arxiv_version: 1011.5204v4 · doi: 10.48550/arxiv.1011.5204 · pith_short_12: S7662A42FU44 · pith_short_16: S7662A42FU44DP2U · pith_short_8: S7662A42

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/S7662A42FU44DP2UD7KIFSNU2F \
  | 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: 97fded039a2d39c1bf541fd482c9b4d151d8d243bc485db7a613e5ba5edcb899

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d6117cac403995c9072b737c3425614f7c61310d147beb6f34a370462fad2870",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2010-11-23T19:50:46Z",
    "title_canon_sha256": "0531be32899a40cac8158786c3e4e0cac1fd159de2e6285c78c28447ace78d4b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1011.5204",
    "kind": "arxiv",
    "version": 4
  }
}