Pith Number

pith:4P6WBDGR

pith:2026:4P6WBDGRAKFL3CJS27WZTN3UIF

not attested not anchored not stored refs pending

Active Learning with Foundation Model Priors: Efficient Learning under Class Imbalance

Jiancheng Zhang, Meiqing Li, Qi Zhang, Yinglun Zhu

arxiv:2606.07630 v1 · 2026-05-30 · cs.LG · cs.AI · 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{4P6WBDGRAKFL3CJS27WZTN3UIF}

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	2026-06-09T00:04:45.226676Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e3fd608cd1028abd8932d7ed99b7744170e65d523c8c2fe69c440422e9f438e5

Aliases

arxiv: 2606.07630 · arxiv_version: 2606.07630v1 · doi: 10.48550/arxiv.2606.07630 · pith_short_12: 4P6WBDGRAKFL · pith_short_16: 4P6WBDGRAKFL3CJS · pith_short_8: 4P6WBDGR

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/4P6WBDGRAKFL3CJS27WZTN3UIF \
  | 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: e3fd608cd1028abd8932d7ed99b7744170e65d523c8c2fe69c440422e9f438e5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e856f0d32c2817c4646a381a134dbcfe9fe09e498da94b26a5b402119f5b6b22",
    "cross_cats_sorted": [
      "cs.AI",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-05-30T23:34:57Z",
    "title_canon_sha256": "6105e1e069ed6df831d44321064ab09036dbca809697ac9437d0c5b96f463ccb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.07630",
    "kind": "arxiv",
    "version": 1
  }
}