Pith Number

pith:PZBN37JH

pith:2015:PZBN37JHLTUI4LN3U6I7EVZR67

not attested not anchored not stored refs pending

The Teaching Dimension of Linear Learners

Ji Liu, Xiaojin Zhu

arxiv:1512.02181 v1 · 2015-12-07 · 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{PZBN37JHLTUI4LN3U6I7EVZR67}

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	2026-05-18T01:25:09.441866Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e42ddfd275ce88e2dbba791f25731f7d3c5ddf133a38ecc102ba0211674a513

Aliases

arxiv: 1512.02181 · arxiv_version: 1512.02181v1 · doi: 10.48550/arxiv.1512.02181 · pith_short_12: PZBN37JHLTUI · pith_short_16: PZBN37JHLTUI4LN3 · pith_short_8: PZBN37JH

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/PZBN37JHLTUI4LN3U6I7EVZR67 \
  | 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: 7e42ddfd275ce88e2dbba791f25731f7d3c5ddf133a38ecc102ba0211674a513

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8cd849974d2bba170148e28a3763ee11006b8c6d045c181488774c3b12b47281",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2015-12-07T19:24:55Z",
    "title_canon_sha256": "378d1ac03fc49d4b66ed2d08cfac1814f40dc9ee2260c377ad307b5f8029e7bc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.02181",
    "kind": "arxiv",
    "version": 1
  }
}