Pith Number

pith:DOENPFLA

pith:2009:DOENPFLAKMVH3QLMTOUUXJVEGT

not attested not anchored not stored refs pending

L^p boundedness of the Hilbert transform

Kunal N. Chaudhury

arxiv:0909.1426 v9 · 2009-09-08 · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DOENPFLAKMVH3QLMTOUUXJVEGT}

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	2026-05-18T03:44:15.780021Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1b88d79560532a7dc16c9ba94ba6a434ca245d0842265e35ba02fd4e1e2339cc

Aliases

arxiv: 0909.1426 · arxiv_version: 0909.1426v9 · doi: 10.48550/arxiv.0909.1426 · pith_short_12: DOENPFLAKMVH · pith_short_16: DOENPFLAKMVH3QLM · pith_short_8: DOENPFLA

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/DOENPFLAKMVH3QLMTOUUXJVEGT \
  | 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: 1b88d79560532a7dc16c9ba94ba6a434ca245d0842265e35ba02fd4e1e2339cc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2f43d576e54fdf2946a52e397dfc0c46347c8340b0c24c63a7752a5b67dfd6d2",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2009-09-08T11:43:09Z",
    "title_canon_sha256": "cb2a848b2a240986decbf95cdbe2d56f4428f412f95f368bdc095edbf76b9009"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.1426",
    "kind": "arxiv",
    "version": 9
  }
}