Pith Number

pith:OKYLUK2G

pith:2014:OKYLUK2GGBQ73WOVSI2MAQ5CLJ

not attested not anchored not stored refs pending

Two-Dimensional Adaptive Fourier Decomposition

Tao Qian

arxiv:1406.2088 v4 · 2014-06-09 · math.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OKYLUK2GGBQ73WOVSI2MAQ5CLJ}

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	2026-05-18T02:21:51.832978Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

72b0ba2b463061fdd9d59234c043a25a4dbb854c525e899fa2edb106806fe605

Aliases

arxiv: 1406.2088 · arxiv_version: 1406.2088v4 · doi: 10.48550/arxiv.1406.2088 · pith_short_12: OKYLUK2GGBQ7 · pith_short_16: OKYLUK2GGBQ73WOV · pith_short_8: OKYLUK2G

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/OKYLUK2GGBQ73WOVSI2MAQ5CLJ \
  | 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: 72b0ba2b463061fdd9d59234c043a25a4dbb854c525e899fa2edb106806fe605

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "df73353e3562254926e0b0d5aabf553b544751447bd09a52360ee9e1c58c125a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2014-06-09T06:52:24Z",
    "title_canon_sha256": "0a550ebac5b878e19dfc89c67d5a95d1b09c291481b254c97f609821536c4bd7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.2088",
    "kind": "arxiv",
    "version": 4
  }
}