Pith Number

pith:OWBBM5NS

pith:2013:OWBBM5NSZQW5Z7FP7RTBIBFPQD

not attested not anchored not stored refs pending

Hyperspectral Data Unmixing Using GNMF Method and Sparseness Constraint

Hassan Ghassemian, Roozbeh Rajabi

arxiv:1307.0129 v1 · 2013-06-29 · 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{OWBBM5NSZQW5Z7FP7RTBIBFPQD}

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	2026-05-18T03:19:34.203391Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

75821675b2cc2ddcfcaffc661404af80eb7a97a417661256c807767dc796ce97

Aliases

arxiv: 1307.0129 · arxiv_version: 1307.0129v1 · doi: 10.48550/arxiv.1307.0129 · pith_short_12: OWBBM5NSZQW5 · pith_short_16: OWBBM5NSZQW5Z7FP · pith_short_8: OWBBM5NS

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/OWBBM5NSZQW5Z7FP7RTBIBFPQD \
  | 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: 75821675b2cc2ddcfcaffc661404af80eb7a97a417661256c807767dc796ce97

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "154bb7a18dbb4d05230630a77a7bd37a185ba1366a644b7e5d17878425872440",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2013-06-29T16:57:44Z",
    "title_canon_sha256": "0baa5959213cbe06d95b85074d410f1259416356b9d08868f2ea70eecac84d18"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.0129",
    "kind": "arxiv",
    "version": 1
  }
}