Pith Number

pith:OWMVXAFO

pith:2019:OWMVXAFOYLWS2YGR2QAHSM3WXG

not attested not anchored not stored refs pending

Clustered Multitask Nonnegative Matrix Factorization for Spectral Unmixing of Hyperspectral Data

Hadi Zayyani, Roozbeh Rajabi, Sara Khoshsokhan

arxiv:1905.08032 v1 · 2019-05-16 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OWMVXAFOYLWS2YGR2QAHSM3WXG}

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	2026-05-17T23:45:47.811534Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

75995b80aec2ed2d60d1d400793376b9b159ce4c9d31c083ee622ba05a501bf8

Aliases

arxiv: 1905.08032 · arxiv_version: 1905.08032v1 · doi: 10.48550/arxiv.1905.08032 · pith_short_12: OWMVXAFOYLWS · pith_short_16: OWMVXAFOYLWS2YGR · pith_short_8: OWMVXAFO

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/OWMVXAFOYLWS2YGR2QAHSM3WXG \
  | 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: 75995b80aec2ed2d60d1d400793376b9b159ce4c9d31c083ee622ba05a501bf8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "465ae6492322de06f2b2beef587ae05507ab5301fbb0aa07dbee6d27e82aa93b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-05-16T20:22:37Z",
    "title_canon_sha256": "571bb78e3a403192502a27d1314d038a44f94a65f5f7b09b4aa259497ced1130"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.08032",
    "kind": "arxiv",
    "version": 1
  }
}