Pith Number

pith:SAMWNEUT

pith:2019:SAMWNEUTDJ3OL2SRIPLGSTHFQ7

not attested not anchored not stored refs pending

A discrete approach to Wirtinger's inequality

Agust\'i Revent\'os, Carlos J. Rodr\'iguez, Juli\`a Cuf\'i

arxiv:1905.05403 v1 · 2019-05-14 · math.CA · 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{SAMWNEUTDJ3OL2SRIPLGSTHFQ7}

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	2026-05-17T23:46:02.908743Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

90196692931a76e5ea5143d6694ce587f652a2693f1bea11c22cd6573e01ae85

Aliases

arxiv: 1905.05403 · arxiv_version: 1905.05403v1 · doi: 10.48550/arxiv.1905.05403 · pith_short_12: SAMWNEUTDJ3O · pith_short_16: SAMWNEUTDJ3OL2SR · pith_short_8: SAMWNEUT

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/SAMWNEUTDJ3OL2SRIPLGSTHFQ7 \
  | 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: 90196692931a76e5ea5143d6694ce587f652a2693f1bea11c22cd6573e01ae85

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b24deb7efd06285465b8ff14bf69623db74d70033977804189289c5187b826b0",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2019-05-14T05:59:17Z",
    "title_canon_sha256": "2b8e56c94b4ddc2f59158eb3e77dcb150361a6477b54c2ebb5124bfa3e54695f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.05403",
    "kind": "arxiv",
    "version": 1
  }
}