Pith Number

pith:PE67FBQ2

pith:2007:PE67FBQ2VL5N3SJNV5SAYGGEFU

not attested not anchored not stored refs pending

A Dynamic Algorithm for Blind Separation of Convolutive Sound Mixtures

Jack Xin, Jie Liu, Yingyong Qi

arxiv:0704.1361 v1 · 2007-04-11 · math.ST · cs.NA · math.NA · stat.CO · stat.TH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PE67FBQ2VL5N3SJNV5SAYGGEFU}

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	2026-06-03T22:06:00.369993Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

793df2861aaafaddc92daf640c18c42d04bb35e87ff8a28ee5e3829acf7d4c58

Aliases

arxiv: 0704.1361 · arxiv_version: 0704.1361v1 · doi: 10.48550/arxiv.0704.1361 · pith_short_12: PE67FBQ2VL5N · pith_short_16: PE67FBQ2VL5N3SJN · pith_short_8: PE67FBQ2

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/PE67FBQ2VL5N3SJNV5SAYGGEFU \
  | 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: 793df2861aaafaddc92daf640c18c42d04bb35e87ff8a28ee5e3829acf7d4c58

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8c549b4bbacc40575c6f8c5635b272b50b615ba7a1ad3a51ccb75bd1522ce8d7",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA",
      "stat.CO",
      "stat.TH"
    ],
    "license": "",
    "primary_cat": "math.ST",
    "submitted_at": "2007-04-11T07:39:02Z",
    "title_canon_sha256": "476c3d21731d41edbc155043f7866a6d49b46adc77370508efa686dd7901dc6c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0704.1361",
    "kind": "arxiv",
    "version": 1
  }
}