Pith Number

pith:235OE6NQ

pith:2010:235OE6NQDKHYDX7224QXPYUICH

not attested not anchored not stored refs pending

A simple observation about compactness and fast decay of Fourier coefficients

J. M. Almira

arxiv:1007.4553 v2 · 2010-07-26 · 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{235OE6NQDKHYDX7224QXPYUICH}

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	2026-05-18T04:42:44.306480Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d6fae279b01a8f81dffad72177e28811c34a3ee42d0164f5a82167a5936ea7f9

Aliases

arxiv: 1007.4553 · arxiv_version: 1007.4553v2 · doi: 10.48550/arxiv.1007.4553 · pith_short_12: 235OE6NQDKHY · pith_short_16: 235OE6NQDKHYDX72 · pith_short_8: 235OE6NQ

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/235OE6NQDKHYDX7224QXPYUICH \
  | 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: d6fae279b01a8f81dffad72177e28811c34a3ee42d0164f5a82167a5936ea7f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a6d4ef82d3f396ed90e7bb9aae089a00a5693e85b408ac1ec89a491e6a30c376",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2010-07-26T20:01:45Z",
    "title_canon_sha256": "ebd80ab250e0fadd31ed0f7e8e2c0cef3af7be6c7f5ee1da0d012af10a56e773"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1007.4553",
    "kind": "arxiv",
    "version": 2
  }
}