Pith Number

pith:WTG4LBLQ

pith:2015:WTG4LBLQNPSOTTYWXK47NRCOZB

not attested not anchored not stored refs pending

Fast Cross-Validation for Incremental Learning

Andr\'as Gy\"orgy, Csaba Szepesv\'ari, Pooria Joulani

arxiv:1507.00066 v1 · 2015-06-30 · stat.ML · cs.AI · 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{WTG4LBLQNPSOTTYWXK47NRCOZB}

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	2026-05-18T01:37:30.694147Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b4cdc585706be4e9cf16bab9f6c44ec87b8f59b47dc8a315bf9c075cd2292476

Aliases

arxiv: 1507.00066 · arxiv_version: 1507.00066v1 · doi: 10.48550/arxiv.1507.00066 · pith_short_12: WTG4LBLQNPSO · pith_short_16: WTG4LBLQNPSOTTYW · pith_short_8: WTG4LBLQ

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/WTG4LBLQNPSOTTYWXK47NRCOZB \
  | 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: b4cdc585706be4e9cf16bab9f6c44ec87b8f59b47dc8a315bf9c075cd2292476

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "da7fb14497a2df81fddf6c3c08c625dda4e2fef0a8bd5934e4107ccbced39363",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2015-06-30T23:30:28Z",
    "title_canon_sha256": "d804a9ee6c59c68b6ec7e07312b6f62d723ebda14b67676bdce2b0df5307114b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.00066",
    "kind": "arxiv",
    "version": 1
  }
}