Pith Number

pith:757MZNSE

pith:2021:757MZNSE73OTQ7OFCTQWKDCAQW

not attested not anchored not stored refs pending

Robust Blind Source Separation by Soft Decision-Directed Non-Unitary Joint Diagonalization

Bingnan Pei, DaZheng Feng, Mengdao Xing, QianRu Wei, Wenjuan Liu, Xinhong Meng

arxiv:2107.06170 v1 · 2021-06-28 · eess.SP · cs.IT · math.IT · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{757MZNSE73OTQ7OFCTQWKDCAQW}

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	2026-07-05T02:57:31.702646Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ff7eccb644fedd387dc514e1650c40859bbf3b9be1e0ecd1e3263f1b4017b396

Aliases

arxiv: 2107.06170 · arxiv_version: 2107.06170v1 · doi: 10.48550/arxiv.2107.06170 · pith_short_12: 757MZNSE73OT · pith_short_16: 757MZNSE73OTQ7OF · pith_short_8: 757MZNSE

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/757MZNSE73OTQ7OFCTQWKDCAQW \
  | 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: ff7eccb644fedd387dc514e1650c40859bbf3b9be1e0ecd1e3263f1b4017b396

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5fa6e156bd21c389cd99554cc4357d55899d88df4a9c7c09ea46af394fc476ec",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT",
      "math.OC"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2021-06-28T07:11:39Z",
    "title_canon_sha256": "ea696bfef4cf77ec536581172b423772638f66ee242bb9f0248ebab8a0e81ea4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.06170",
    "kind": "arxiv",
    "version": 1
  }
}