Pith Number

pith:2WDIX7DB

pith:2022:2WDIX7DBXXTZAADWB6NVSSFCHE

not attested not anchored not stored refs pending

Semi-blind source separation using convolutive transfer function for nonlinear acoustic echo cancellation

Changbao Zhu, Guoliang Cheng, Jing Lu, Kai Chen, Lele Liao, Yuxiang Hu

arxiv:2207.01556 v1 · 2022-07-04 · eess.AS · 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{2WDIX7DBXXTZAADWB6NVSSFCHE}

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	2026-07-05T05:33:47.572977Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d5868bfc61bde79000760f9b5948a23937f3b6aa6a613972a3215b95343e25f8

Aliases

arxiv: 2207.01556 · arxiv_version: 2207.01556v1 · doi: 10.48550/arxiv.2207.01556 · pith_short_12: 2WDIX7DBXXTZ · pith_short_16: 2WDIX7DBXXTZAADW · pith_short_8: 2WDIX7DB

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/2WDIX7DBXXTZAADWB6NVSSFCHE \
  | 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: d5868bfc61bde79000760f9b5948a23937f3b6aa6a613972a3215b95343e25f8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a11b366d20e30b37028d78313f2cc326f1d1bc9aef0b555a9fb6db969b71072f",
    "cross_cats_sorted": [
      "cs.SD",
      "eess.SP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.AS",
    "submitted_at": "2022-07-04T16:24:37Z",
    "title_canon_sha256": "338bedc54a0411f2f00cddb347b8213479b781f9a305e71b9c391fdcf5fd074a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2207.01556",
    "kind": "arxiv",
    "version": 1
  }
}