Pith Number

pith:ZTGO6HUO

pith:2018:ZTGO6HUO7ZEHDSJ4UD5SH2NWQI

not attested not anchored not stored refs pending

Numerical approximation of optimal convex shapes

Gerd Wachsmuth, S\"oren Bartels

arxiv:1810.10735 v1 · 2018-10-25 · 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{ZTGO6HUO7ZEHDSJ4UD5SH2NWQI}

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	2026-05-18T00:02:19.780392Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ccccef1e8efe4871c93ca0fb23e9b6823ee5ffa169b4191980a7f52eb9b06af1

Aliases

arxiv: 1810.10735 · arxiv_version: 1810.10735v1 · doi: 10.48550/arxiv.1810.10735 · pith_short_12: ZTGO6HUO7ZEH · pith_short_16: ZTGO6HUO7ZEHDSJ4 · pith_short_8: ZTGO6HUO

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/ZTGO6HUO7ZEHDSJ4UD5SH2NWQI \
  | 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: ccccef1e8efe4871c93ca0fb23e9b6823ee5ffa169b4191980a7f52eb9b06af1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b5731d8a0e6fd6d680c8021dc18c4f45de304320b50d1ca3682bc7b75791cf54",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2018-10-25T06:24:10Z",
    "title_canon_sha256": "253e0ee57f006f08c640af4a41b530012d7dbba6cd30aa1807126f057950ff02"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.10735",
    "kind": "arxiv",
    "version": 1
  }
}