Pith Number

pith:BLCZEIPC

pith:2011:BLCZEIPCLCBBW4P3JYQOLK3OMQ

not attested not anchored not stored refs pending

Graph Regularized Nonnegative Matrix Factorization for Hyperspectral Data Unmixing

Hassan Ghassemian, Mahdi Khodadadzadeh, Roozbeh Rajabi

arxiv:1111.0885 v1 · 2011-11-03 · 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{BLCZEIPCLCBBW4P3JYQOLK3OMQ}

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	2026-05-18T04:09:36.732177Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0ac59221e258821b71fb4e20e5ab6e640b9d3e1384d374fc3cddfc65839c7b7f

Aliases

arxiv: 1111.0885 · arxiv_version: 1111.0885v1 · doi: 10.48550/arxiv.1111.0885 · pith_short_12: BLCZEIPCLCBB · pith_short_16: BLCZEIPCLCBBW4P3 · pith_short_8: BLCZEIPC

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/BLCZEIPCLCBBW4P3JYQOLK3OMQ \
  | 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: 0ac59221e258821b71fb4e20e5ab6e640b9d3e1384d374fc3cddfc65839c7b7f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7434762f104dcabc41e764b4bb170d66ee362924f4f5e555ecd15342ef55345e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2011-11-03T15:46:47Z",
    "title_canon_sha256": "d375024fd700d0d6e7b8a54a5243eb8d0f6e635c098bce367cd76c3a995831b7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.0885",
    "kind": "arxiv",
    "version": 1
  }
}