Pith Number

pith:H3HKQOFX

pith:2026:H3HKQOFXWY5GANSGDAA3FIFJSG

not attested not anchored not stored refs pending

Sample Complexity of Transfer Learning: An Optimal Transport Approach

Guan Wang, Haoyang Cao, Wenpin Tang, Xin Guo

arxiv:2605.20545 v1 · 2026-05-19 · stat.ML · 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{H3HKQOFXWY5GANSGDAA3FIFJSG}

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	2026-05-21T01:04:41.888734Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3ecea838b7b63a6036461801b2a0a991a7000af2c7e15597405c0e6029fd30ee

Aliases

arxiv: 2605.20545 · arxiv_version: 2605.20545v1 · doi: 10.48550/arxiv.2605.20545 · pith_short_12: H3HKQOFXWY5G · pith_short_16: H3HKQOFXWY5GANSG · pith_short_8: H3HKQOFX

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/H3HKQOFXWY5GANSGDAA3FIFJSG \
  | 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: 3ecea838b7b63a6036461801b2a0a991a7000af2c7e15597405c0e6029fd30ee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f431c7ca3b8ec0866ef4fffde729897a4e70087b0613c1742cdeac596bbce818",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2026-05-19T22:39:03Z",
    "title_canon_sha256": "31eefc05481df3847765fc529f44610121680074685a883c7038d25da04cdc62"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.20545",
    "kind": "arxiv",
    "version": 1
  }
}