Pith Number

pith:F2A3WOJ7

pith:2018:F2A3WOJ722PHFPAPKJBMX52N6I

not attested not anchored not stored refs pending

Speech Enhancement Based on Reducing the Detail Portion of Speech Spectrograms in Modulation Domain via Discrete Wavelet Transform

Jeih-Weih Hung, Shih-kuang Lee, Syu-Siang Wang, Yu Tsao

arxiv:1811.03486 v1 · 2018-11-08 · eess.AS · cs.SD

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{F2A3WOJ722PHFPAPKJBMX52N6I}

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	2026-05-18T00:01:16.000197Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2e81bb393fd69e72bc0f5242cbf74df2361734cfa264371a916173e0f350d5cd

Aliases

arxiv: 1811.03486 · arxiv_version: 1811.03486v1 · doi: 10.48550/arxiv.1811.03486 · pith_short_12: F2A3WOJ722PH · pith_short_16: F2A3WOJ722PHFPAP · pith_short_8: F2A3WOJ7

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/F2A3WOJ722PHFPAPKJBMX52N6I \
  | 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: 2e81bb393fd69e72bc0f5242cbf74df2361734cfa264371a916173e0f350d5cd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c384a4dda03f28dc61a39c868ebaff89313506bc478d6d271c117e5df7c29fa8",
    "cross_cats_sorted": [
      "cs.SD"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.AS",
    "submitted_at": "2018-11-08T15:16:43Z",
    "title_canon_sha256": "4375ecff84925d599ec4afce08fae8658a956bd6c01abb582ba3aa4c362776bc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.03486",
    "kind": "arxiv",
    "version": 1
  }
}