Pith Number

pith:3CH5ADYO

pith:2018:3CH5ADYOHV3EZCMAJ6QNDFT44Z

not attested not anchored not stored refs pending

Least gradient problem with respect to a non-strictly convex norm

Wojciech G\'orny

arxiv:1806.01921 v1 · 2018-06-05 · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3CH5ADYOHV3EZCMAJ6QNDFT44Z}

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.

Cited by

1 paper in Pith

Least gradient problem on annuli

Receipt and verification

First computed	2026-05-18T00:14:03.439399Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d88fd00f0e3d764c89804fa0d1967ce65757f4997add62b3e112939f6a67b095

Aliases

arxiv: 1806.01921 · arxiv_version: 1806.01921v1 · doi: 10.48550/arxiv.1806.01921 · pith_short_12: 3CH5ADYOHV3E · pith_short_16: 3CH5ADYOHV3EZCMA · pith_short_8: 3CH5ADYO

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/3CH5ADYOHV3EZCMAJ6QNDFT44Z \
  | 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: d88fd00f0e3d764c89804fa0d1967ce65757f4997add62b3e112939f6a67b095

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5df19ce522824527ea170435132059c087043d5fe6ede82ed0f000ef68ae7f1e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2018-06-05T20:07:49Z",
    "title_canon_sha256": "657000748f770bf5184a7864e6533d68cde27f863e08bd810ca5b7061c35dba2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.01921",
    "kind": "arxiv",
    "version": 1
  }
}