Pith Number

pith:BKWNYISD

pith:2009:BKWNYISD353BUYFZVYGEKGENHD

not attested not anchored not stored refs pending

Anisotropic Singular Integrals in Product Spaces

Baode Li, Dachun Yang, Marcin Bownik, Yuan Zhou

arxiv:0903.4720 v2 · 2009-03-27 · math.CA · math.FA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BKWNYISD353BUYFZVYGEKGENHD}

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	2026-05-18T02:14:19.193964Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0aacdc2243df761a60b9ae0c45188d38d362c3e3efcdda8eb57687877e86221e

Aliases

arxiv: 0903.4720 · arxiv_version: 0903.4720v2 · doi: 10.48550/arxiv.0903.4720 · pith_short_12: BKWNYISD353B · pith_short_16: BKWNYISD353BUYFZ · pith_short_8: BKWNYISD

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/BKWNYISD353BUYFZVYGEKGENHD \
  | 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: 0aacdc2243df761a60b9ae0c45188d38d362c3e3efcdda8eb57687877e86221e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a7a1fb10f4e999f84ded973c44da251862374dc976b137458f67ac7f89fd0412",
    "cross_cats_sorted": [
      "math.FA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2009-03-27T01:09:31Z",
    "title_canon_sha256": "ec8fbfc4cc42a65bf09c965028865baf24612feac2c6cd89319ba922cfb10610"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.4720",
    "kind": "arxiv",
    "version": 2
  }
}