Pith Number

pith:TJTI4KBG

pith:2009:TJTI4KBGBBYAMZSEDB2MNRX3BS

not attested not anchored not stored refs pending

Synchrosqueezed Wavelet Transforms: a Tool for Empirical Mode Decomposition

Hau-Tieng Wu, Ingrid Daubechies, Jianfeng Lu

arxiv:0912.2437 v1 · 2009-12-12 · math.NA · cs.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TJTI4KBGBBYAMZSEDB2MNRX3BS}

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	2026-06-03T23:06:31.482615Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9a668e282608700666441874c6c6fb0c9f9fa44c2f807ee23746bd29ade077ad

Aliases

arxiv: 0912.2437 · arxiv_version: 0912.2437v1 · doi: 10.48550/arxiv.0912.2437 · pith_short_12: TJTI4KBGBBYA · pith_short_16: TJTI4KBGBBYAMZSE · pith_short_8: TJTI4KBG

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/TJTI4KBGBBYAMZSEDB2MNRX3BS \
  | 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: 9a668e282608700666441874c6c6fb0c9f9fa44c2f807ee23746bd29ade077ad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5463c381fc4310a37ea477ffb1d8b8096b89b8b173352e324b053a14abdcd194",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2009-12-12T17:38:44Z",
    "title_canon_sha256": "50612e81224594dee6670e5b04bcc4cc62c1093439dc5fbe8b45153a545daa5b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.2437",
    "kind": "arxiv",
    "version": 1
  }
}