Pith Number

pith:J2UGKSOG

pith:2025:J2UGKSOGCABW5XQQJFQQCITWCO

not attested not anchored not stored refs pending

Multi-Channel Acoustic Echo Cancellation Based on Direction-of-Arrival Estimation

Fei Zhao, Xueliang Zhang, Zhong-Qiu Wang

arxiv:2505.19493 v2 · 2025-05-26 · cs.SD · 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{J2UGKSOGCABW5XQQJFQQCITWCO}

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	2026-07-05T11:16:58.674171Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4ea86549c610036ede104961012276138fb88a9bc3d83e924629558f2e39dc16

Aliases

arxiv: 2505.19493 · arxiv_version: 2505.19493v2 · doi: 10.48550/arxiv.2505.19493 · pith_short_12: J2UGKSOGCABW · pith_short_16: J2UGKSOGCABW5XQQ · pith_short_8: J2UGKSOG

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/J2UGKSOGCABW5XQQJFQQCITWCO \
  | 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: 4ea86549c610036ede104961012276138fb88a9bc3d83e924629558f2e39dc16

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fc923e151c709367229751c2e669833a5ebbf1bf4478994840f3b7abeace0b4e",
    "cross_cats_sorted": [
      "eess.AS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SD",
    "submitted_at": "2025-05-26T04:22:45Z",
    "title_canon_sha256": "81817fe8a22c3880f3dd7fc85398c2589959779a02467df76aa1d37091baac65"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.19493",
    "kind": "arxiv",
    "version": 2
  }
}