Pith Number

pith:TM2LYMYQ

pith:2010:TM2LYMYQKNP37KUOTBZTHN5GAM

not attested not anchored not stored refs pending

Contracting Convex Immersed Closed Plane Curves with Slow Speed of Curvature

Chi-Cheung Poon, Dong-Ho Tsai, Yu-Chu Lin

arxiv:1009.4777 v1 · 2010-09-24 · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TM2LYMYQKNP37KUOTBZTHN5GAM}

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	2026-05-18T04:40:21.200758Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9b34bc3310535fbfaa8e987333b7a60324b83d8a2808cf63e6937422acf96bc0

Aliases

arxiv: 1009.4777 · arxiv_version: 1009.4777v1 · doi: 10.48550/arxiv.1009.4777 · pith_short_12: TM2LYMYQKNP3 · pith_short_16: TM2LYMYQKNP37KUO · pith_short_8: TM2LYMYQ

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/TM2LYMYQKNP37KUOTBZTHN5GAM \
  | 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: 9b34bc3310535fbfaa8e987333b7a60324b83d8a2808cf63e6937422acf96bc0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0459f2ef1cec9f79c43199719e234adf87b19b70bfee96bc9fd8f7df5e686515",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2010-09-24T07:28:54Z",
    "title_canon_sha256": "26d85044893aa42cea655156a74b74e65ab9bc6ae6b9e20d0389368588b3da5b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.4777",
    "kind": "arxiv",
    "version": 1
  }
}