Pith Number

pith:HWQTSUS3

pith:2022:HWQTSUS3UQXEQTWDJEZK5OC5Y4

not attested not anchored not stored refs pending

A DNN Based Post-Filter to Enhance the Quality of Coded Speech in MDCT Domain

Bernd Edler, Guillaume Fuchs, Kishan Gupta, Srikanth Korse

arxiv:2201.12039 v1 · 2022-01-28 · eess.AS · cs.LG · cs.SD · eess.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HWQTSUS3UQXEQTWDJEZK5OC5Y4}

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	2026-07-05T11:06:59.048416Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3da139525ba42e484ec34932aeb85dc72b015e7a428a52c83968bb21f706393b

Aliases

arxiv: 2201.12039 · arxiv_version: 2201.12039v1 · doi: 10.48550/arxiv.2201.12039 · pith_short_12: HWQTSUS3UQXE · pith_short_16: HWQTSUS3UQXEQTWD · pith_short_8: HWQTSUS3

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/HWQTSUS3UQXEQTWDJEZK5OC5Y4 \
  | 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: 3da139525ba42e484ec34932aeb85dc72b015e7a428a52c83968bb21f706393b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e7d76979566fbc1af0b3d3ae2983955cc8d3dea55c6e6c50bcc023b7abcd649",
    "cross_cats_sorted": [
      "cs.LG",
      "cs.SD",
      "eess.SP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.AS",
    "submitted_at": "2022-01-28T11:08:02Z",
    "title_canon_sha256": "b3704a02e60aeacad2c0812d14031cf780ed18f6a0b741a5dd19f28c5887169d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2201.12039",
    "kind": "arxiv",
    "version": 1
  }
}