Pith Number

pith:UTDPTEH3

pith:2013:UTDPTEH3N5WGUPP5VM3AITG4ZP

not attested not anchored not stored refs pending

Singular integrals and maximal functions: the disk multiplier revisited

Antonio C\'ordoba

arxiv:1310.6276 v4 · 2013-10-23 · 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{UTDPTEH3N5WGUPP5VM3AITG4ZP}

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	2026-05-18T03:04:22.276337Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a4c6f990fb6f6c6a3dfdab36044cdccbfd5fbac7f352ed5d6649cbcf3c88fb0d

Aliases

arxiv: 1310.6276 · arxiv_version: 1310.6276v4 · doi: 10.48550/arxiv.1310.6276 · pith_short_12: UTDPTEH3N5WG · pith_short_16: UTDPTEH3N5WGUPP5 · pith_short_8: UTDPTEH3

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/UTDPTEH3N5WGUPP5VM3AITG4ZP \
  | 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: a4c6f990fb6f6c6a3dfdab36044cdccbfd5fbac7f352ed5d6649cbcf3c88fb0d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5f7fb57f6aefcdfc90d5bf394dec7a798a61aaa07f956923eb4b9e1d0bb91ad6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2013-10-23T16:16:38Z",
    "title_canon_sha256": "04e6a647162adaafa0ec9494836ca553e07a1155fe58e34aec0ad084026c4115"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.6276",
    "kind": "arxiv",
    "version": 4
  }
}