Pith Number

pith:45UVE7DP

pith:2021:45UVE7DPVZ3A35246KTRB4TVSK

not attested not anchored not stored refs pending

Sparse solutions of the kernel herding algorithm by improved gradient approximation

Kazuma Tsuji, Ken'ichiro Tanaka

arxiv:2105.07900 v2 · 2021-05-17 · math.NA · cs.NA · stat.CO · 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{45UVE7DPVZ3A35246KTRB4TVSK}

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	2026-07-05T04:40:23.308735Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e769527c6fae760df75cf2a710f27592ade8dc5e2193abdfbb1b6a64a495a56d

Aliases

arxiv: 2105.07900 · arxiv_version: 2105.07900v2 · doi: 10.48550/arxiv.2105.07900 · pith_short_12: 45UVE7DPVZ3A · pith_short_16: 45UVE7DPVZ3A3524 · pith_short_8: 45UVE7DP

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/45UVE7DPVZ3A35246KTRB4TVSK \
  | 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: e769527c6fae760df75cf2a710f27592ade8dc5e2193abdfbb1b6a64a495a56d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "911e4c8a3eae9b92307f351ec6f8666470e91d4f6a13a14b222fa87153e8eb22",
    "cross_cats_sorted": [
      "cs.NA",
      "stat.CO",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2021-05-17T14:32:45Z",
    "title_canon_sha256": "0b8a587e48375beb93058d7982e485633528fd04e847020b66fae0f7140a50c5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.07900",
    "kind": "arxiv",
    "version": 2
  }
}