Pith Number

pith:R4OR3635

pith:2023:R4OR3635I7E6MS3JIVYPC4AU3Y

not attested not anchored not stored refs pending

Advances and Challenges in Meta-Learning: A Technical Review

Anna Vettoruzzo, Joaquin Vanschoren, KC Santosh, Mohamed-Rafik Bouguelia, Thorsteinn R\"ognvaldsson

arxiv:2307.04722 v2 · 2023-07-10 · 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{R4OR3635I7E6MS3JIVYPC4AU3Y}

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	2026-06-01T01:02:11.300869Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8f1d1dfb7d47c9e64b694570f17014de15236d7557ef7a9a621d0b2290108f5c

Aliases

arxiv: 2307.04722 · arxiv_version: 2307.04722v2 · doi: 10.48550/arxiv.2307.04722 · pith_short_12: R4OR3635I7E6 · pith_short_16: R4OR3635I7E6MS3J · pith_short_8: R4OR3635

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/R4OR3635I7E6MS3JIVYPC4AU3Y \
  | 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: 8f1d1dfb7d47c9e64b694570f17014de15236d7557ef7a9a621d0b2290108f5c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9adc16bd6e102b6825313d46709e955aee85e2da0e665e3ea2e0991e16fcb405",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2023-07-10T17:32:15Z",
    "title_canon_sha256": "1209d7ffc0e472cd920e444269971c1d01f25d321d3c6d879d189dbe44f339b5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2307.04722",
    "kind": "arxiv",
    "version": 2
  }
}