Pith Number

pith:MK7SHTMZ

pith:2014:MK7SHTMZO7NPO4LVHLD5QOTGDD

not attested not anchored not stored refs pending

Nonlinear hyperspectral unmixing with robust nonnegative matrix factorization

C\'edric F\'evotte, Nicolas Dobigeon

arxiv:1401.5649 v2 · 2014-01-22 · stat.ME · 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{MK7SHTMZO7NPO4LVHLD5QOTGDD}

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	2026-05-18T01:29:11.664246Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

62bf23cd9977daf771753ac7d83a6618e92f3719a3796fc20fa2163a4f511e2a

Aliases

arxiv: 1401.5649 · arxiv_version: 1401.5649v2 · doi: 10.48550/arxiv.1401.5649 · pith_short_12: MK7SHTMZO7NP · pith_short_16: MK7SHTMZO7NPO4LV · pith_short_8: MK7SHTMZ

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/MK7SHTMZO7NPO4LVHLD5QOTGDD \
  | 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: 62bf23cd9977daf771753ac7d83a6618e92f3719a3796fc20fa2163a4f511e2a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "08180a2eafef1b81a94292bfdeb40414257666528fc369386aec7bd7a8b1c7f1",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2014-01-22T13:04:16Z",
    "title_canon_sha256": "812e3f5ba921450f79fb039c19f6bf5f1c1caee02271cdd77ff45b74f80f9552"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.5649",
    "kind": "arxiv",
    "version": 2
  }
}