Pith Number

pith:DYTPH4HY

pith:2011:DYTPH4HYUSOPBQ6BICFFTQUAYG

not attested not anchored not stored refs pending

Regularity and singularities of Optimal Convex shapes in the plane

Arian Novruzi, Jimmy Lamboley (CEREMADE), Michel Pierre (IRMAR)

arxiv:1112.3054 v1 · 2011-12-13 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DYTPH4HYUSOPBQ6BICFFTQUAYG}

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	2026-05-18T01:59:10.536172Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1e26f3f0f8a49cf0c3c1408a59c280c187e0bb4f835b9ff5f8099812ba6e309c

Aliases

arxiv: 1112.3054 · arxiv_version: 1112.3054v1 · doi: 10.48550/arxiv.1112.3054 · pith_short_12: DYTPH4HYUSOP · pith_short_16: DYTPH4HYUSOPBQ6B · pith_short_8: DYTPH4HY

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/DYTPH4HYUSOPBQ6BICFFTQUAYG \
  | 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: 1e26f3f0f8a49cf0c3c1408a59c280c187e0bb4f835b9ff5f8099812ba6e309c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bc018bf3d3ccdf6b6544bcaf994c6dad98970a1e8245b4f398972484d98b3417",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2011-12-13T21:47:53Z",
    "title_canon_sha256": "79039a58939a5c67edf7d65c13c1041bc0193329d58ef759645cd54134136031"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.3054",
    "kind": "arxiv",
    "version": 1
  }
}