Pith Number

pith:U2TSAPUV

pith:2020:U2TSAPUVIFFF5KL3VS2MCO3CMO

not attested not anchored not stored refs pending

Incremental Fast Subclass Discriminant Analysis

Alexandros Iosifidis, Jenni Raitoharju, Kateryna Chumachenko, Moncef Gabbouj

arxiv:2002.04348 v1 · 2020-02-11 · 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{U2TSAPUVIFFF5KL3VS2MCO3CMO}

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	2026-07-05T00:39:44.572598Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a6a7203e95414a5ea97bacb4c13b62639db0e8d1cd793642d77587c8d204c09f

Aliases

arxiv: 2002.04348 · arxiv_version: 2002.04348v1 · doi: 10.48550/arxiv.2002.04348 · pith_short_12: U2TSAPUVIFFF · pith_short_16: U2TSAPUVIFFF5KL3 · pith_short_8: U2TSAPUV

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/U2TSAPUVIFFF5KL3VS2MCO3CMO \
  | 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: a6a7203e95414a5ea97bacb4c13b62639db0e8d1cd793642d77587c8d204c09f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1598bdc9dacb016462acba44d60b5f20bdc1d8e2a23e5e22b63a27724e1d4c7b",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2020-02-11T12:38:56Z",
    "title_canon_sha256": "02002bfec3007d080608afa2cff8a21678bc7b20a37cbf4b47b3eb398bb6e249"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2002.04348",
    "kind": "arxiv",
    "version": 1
  }
}