Pith Number

pith:EF22RBII

pith:2009:EF22RBIIMOYTEFG7V4FZVMMKNF

not attested not anchored not stored refs pending

The best constant for the centered maximal operator on radial decreasing functions

J.M. Aldaz, J. P\'erez L\'azaro

arxiv:0906.4652 v3 · 2009-06-25 · math.CA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EF22RBIIMOYTEFG7V4FZVMMKNF}

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	2026-05-18T04:29:54.055633Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2175a8850863b13214dfaf0b9ab18a696962fd920400432b1bc9a81a51102790

Aliases

arxiv: 0906.4652 · arxiv_version: 0906.4652v3 · doi: 10.48550/arxiv.0906.4652 · pith_short_12: EF22RBIIMOYT · pith_short_16: EF22RBIIMOYTEFG7 · pith_short_8: EF22RBII

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/EF22RBIIMOYTEFG7V4FZVMMKNF \
  | 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: 2175a8850863b13214dfaf0b9ab18a696962fd920400432b1bc9a81a51102790

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a9fc616787b4b1876df2b2618f8d01d7b27526455882e4ba3356f9e3b78b23d2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2009-06-25T10:15:30Z",
    "title_canon_sha256": "8cbeb5db5d18234db6cc8b33087122e331f1a2d8eb8e0c5092b339b241cebaf5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.4652",
    "kind": "arxiv",
    "version": 3
  }
}