Pith Number

pith:UBZT2NJL

pith:2019:UBZT2NJLOO7OKTQTCLWCKY7O6W

not attested not anchored not stored refs pending

Semi-supervised Learning with Graphs: Covariance Based Superpixels For Hyperspectral Image Classification

Angelica Aviles-Rivero, Anita Faul, Carola-Bibane Sch\"onlieb, David Coomes, Nicolas Papadakis, Philip Sellars

arxiv:1901.04240 v4 · 2019-01-14 · cs.CV · cs.LG · 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{UBZT2NJLOO7OKTQTCLWCKY7O6W}

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	2026-05-17T23:46:09.250330Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a0733d352b73bee54e1312ec2563eef5bf1f9d3fcf668c0d510947555aea8c04

Aliases

arxiv: 1901.04240 · arxiv_version: 1901.04240v4 · doi: 10.48550/arxiv.1901.04240 · pith_short_12: UBZT2NJLOO7O · pith_short_16: UBZT2NJLOO7OKTQT · pith_short_8: UBZT2NJL

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/UBZT2NJLOO7OKTQTCLWCKY7O6W \
  | 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: a0733d352b73bee54e1312ec2563eef5bf1f9d3fcf668c0d510947555aea8c04

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d48117b620213ce73bd6d84faae40cacbdf78b29b9c1468f2c4c3ea0b253172f",
    "cross_cats_sorted": [
      "cs.LG",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-01-14T11:18:27Z",
    "title_canon_sha256": "d6f9598b3fb507f579f64a867fd961c3fe861302e3229196625f35c9b2f04021"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.04240",
    "kind": "arxiv",
    "version": 4
  }
}