Pith Number

pith:RJSXFQY3

pith:2015:RJSXFQY3GFSBRJREVJNY4JIXH7

not attested not anchored not stored refs pending

Optimum Reject Options for Prototype-based Classification

Barbara Hammer, Heiko Wersing, Lydia Fischer

arxiv:1503.06549 v1 · 2015-03-23 · cs.LG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RJSXFQY3GFSBRJREVJNY4JIXH7}

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	2026-05-18T02:20:38.050798Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8a6572c31b316418a624aa5b8e25173fe30889a447bf1bd355de215cb866385c

Aliases

arxiv: 1503.06549 · arxiv_version: 1503.06549v1 · doi: 10.48550/arxiv.1503.06549 · pith_short_12: RJSXFQY3GFSB · pith_short_16: RJSXFQY3GFSBRJRE · pith_short_8: RJSXFQY3

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/RJSXFQY3GFSBRJREVJNY4JIXH7 \
  | 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: 8a6572c31b316418a624aa5b8e25173fe30889a447bf1bd355de215cb866385c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "16409597f942144e53f32587d8d2feeaf568daa668fcb68d2578fedb73c3958d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2015-03-23T08:19:17Z",
    "title_canon_sha256": "c6b9926806b06df017a42c8e09c2042989d72bebbc707d104545a7a8c7789113"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.06549",
    "kind": "arxiv",
    "version": 1
  }
}