Pith Number

pith:2PZJTP6L

pith:2018:2PZJTP6LJ7X3NATQHTS6HMWJAD

not attested not anchored not stored refs pending

Blind Source Separation with Optimal Transport Non-negative Matrix Factorization

Antoine Rolet, Hiroshi Sawada, Mathieu Blondel, Vivien Seguy

arxiv:1802.05429 v1 · 2018-02-15 · cs.SD · eess.AS · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2PZJTP6LJ7X3NATQHTS6HMWJAD}

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	2026-05-18T00:04:49.769192Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3f299bfcb4fefb682703ce5e3b2c900f1ea8049e118c39b3f51dac7e47e62d6

Aliases

arxiv: 1802.05429 · arxiv_version: 1802.05429v1 · doi: 10.48550/arxiv.1802.05429 · pith_short_12: 2PZJTP6LJ7X3 · pith_short_16: 2PZJTP6LJ7X3NATQ · pith_short_8: 2PZJTP6L

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/2PZJTP6LJ7X3NATQHTS6HMWJAD \
  | 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: d3f299bfcb4fefb682703ce5e3b2c900f1ea8049e118c39b3f51dac7e47e62d6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a8f9a0d33374b91f42b5a69e89595c880242c9953b7f6b92ceeb83b49f29f1f8",
    "cross_cats_sorted": [
      "eess.AS",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SD",
    "submitted_at": "2018-02-15T08:01:48Z",
    "title_canon_sha256": "29e36ee0b0d574fa635961d0369ce8356215aefe236beae450e8489c9478e631"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.05429",
    "kind": "arxiv",
    "version": 1
  }
}