Pith Number

pith:76NA6RJV

pith:2015:76NA6RJVVOXFZKD3E3WRPMFEY4

not attested not anchored not stored refs pending

Robust Collaborative Nonnegative Matrix Factorization For Hyperspectral Unmixing (R-CoNMF)

Antonio Plaza, Jose M. Bioucas-Dias, Jun Li, Lin Liu

arxiv:1506.04870 v1 · 2015-06-16 · 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{76NA6RJVVOXFZKD3E3WRPMFEY4}

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	2026-05-18T01:04:14.617774Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ff9a0f4535abae5ca87b26ed17b0a4c717ba8c4b3c8dc9e4d99de2df8ed7c30a

Aliases

arxiv: 1506.04870 · arxiv_version: 1506.04870v1 · doi: 10.48550/arxiv.1506.04870 · pith_short_12: 76NA6RJVVOXF · pith_short_16: 76NA6RJVVOXFZKD3 · pith_short_8: 76NA6RJV

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/76NA6RJVVOXFZKD3E3WRPMFEY4 \
  | 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: ff9a0f4535abae5ca87b26ed17b0a4c717ba8c4b3c8dc9e4d99de2df8ed7c30a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1c384d3ba7a7978eb298a725757d06adad0d87f10e521c4a0aa92e07e637e804",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2015-06-16T08:21:16Z",
    "title_canon_sha256": "9ad19fde130399db430b5900f64bd238528a98861f22f34af48b75df85afaab6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.04870",
    "kind": "arxiv",
    "version": 1
  }
}