Pith Number

pith:66QX2VXK

pith:2018:66QX2VXKJCBLQIUDXAAOAEJWFU

not attested not anchored not stored refs pending

Enhancement of Noisy Speech Exploiting an Exponential Model Based Threshold and a Custom Thresholding Function in Perceptual Wavelet Packet Domain

Celia Shahnaz, Md Tauhidul Islam, M. Omair Ahmad, Wei-Ping Zhu

arxiv:1802.05962 v1 · 2018-02-15 · eess.AS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{66QX2VXKJCBLQIUDXAAOAEJWFU}

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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	2026-05-18T00:23:10.310741Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f7a17d56ea4882b82283b800e011362d33ffd665c2bc90ac9e5f8a1f7e9e3043

Aliases

arxiv: 1802.05962 · arxiv_version: 1802.05962v1 · doi: 10.48550/arxiv.1802.05962 · pith_short_12: 66QX2VXKJCBL · pith_short_16: 66QX2VXKJCBLQIUD · pith_short_8: 66QX2VXK

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/66QX2VXKJCBLQIUDXAAOAEJWFU \
  | 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: f7a17d56ea4882b82283b800e011362d33ffd665c2bc90ac9e5f8a1f7e9e3043

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6a3492f0600e468a3bab5b5c9c5401df74460fc5d477fd1477c3f6b68033e427",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.AS",
    "submitted_at": "2018-02-15T02:35:37Z",
    "title_canon_sha256": "799f7b581b91905a5389531c8772a0c26ea3fb6c9be8a0d06f9a04fe475daf6f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.05962",
    "kind": "arxiv",
    "version": 1
  }
}