Pith Number

pith:B4XLADPS

pith:2026:B4XLADPS5CO242S5QBXMEKZLZE

not attested not anchored not stored refs pending

Pretraining Objective Matters in Extreme Low-Data FGVC: A Backbone-Controlled Study

Aisha Sartaj, Alexander Hackett, Ginny Fisher, Jason Fisher, Mahule Roy, Srikanth Thudumu

arxiv:2605.15599 v1 · 2026-05-15 · cs.CV · cs.AI

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{B4XLADPS5CO242S5QBXMEKZLZE}

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	2026-05-20T00:01:07.462579Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0f2eb00df2e89dae6a5d806ec22b2bc913d4e475a92f0556ca8af3d590440bb8

Aliases

arxiv: 2605.15599 · arxiv_version: 2605.15599v1 · doi: 10.48550/arxiv.2605.15599 · pith_short_12: B4XLADPS5CO2 · pith_short_16: B4XLADPS5CO242S5 · pith_short_8: B4XLADPS

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/B4XLADPS5CO242S5QBXMEKZLZE \
  | 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: 0f2eb00df2e89dae6a5d806ec22b2bc913d4e475a92f0556ca8af3d590440bb8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "94eef402f88e16cb36cbd61968c9ca79c4afc07effe0e99736212df483656de0",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2026-05-15T04:14:16Z",
    "title_canon_sha256": "5e9764c61bc478385f70d204c6b7c9aabb9f5e1b1cbb1a8a3253d17e9d894990"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.15599",
    "kind": "arxiv",
    "version": 1
  }
}