Pith Number

pith:PPMQZ4CF

pith:2026:PPMQZ4CFYIMN6T5IPNJOPWTYLV

not attested not anchored not stored refs pending

FD$^2$: A Dedicated Framework for Fine-Grained Dataset Distillation

Baoli Sun, Dongzhan Zhou, Guang Li, Hongxu Ma, Miki Haseyama, Shijie Wang, Takahiro Ogawa, Zhihui Wang

arxiv:2603.25144 v2 · 2026-03-26 · 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{PPMQZ4CFYIMN6T5IPNJOPWTYLV}

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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.

Cited by

1 paper in Pith

Closed-Form Linear-Probe Dataset Distillation for Pre-trained Vision Models

Receipt and verification

First computed	2026-06-30T01:17:37.604671Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7bd90cf045c218df4fa87b52e7da785d75473e48a6dbb7fc0ff5fad6bb52e57c

Aliases

arxiv: 2603.25144 · arxiv_version: 2603.25144v2 · doi: 10.48550/arxiv.2603.25144 · pith_short_12: PPMQZ4CFYIMN · pith_short_16: PPMQZ4CFYIMN6T5I · pith_short_8: PPMQZ4CF

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/PPMQZ4CFYIMN6T5IPNJOPWTYLV \
  | 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: 7bd90cf045c218df4fa87b52e7da785d75473e48a6dbb7fc0ff5fad6bb52e57c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e42b8b39499505976170c88b08c33744cca91bcbd7624959f64e55bed918d625",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2026-03-26T08:03:45Z",
    "title_canon_sha256": "c1d8e2c6b7922ac8b9d1e949383f816c950e314301dfab92f1dbe12b05603875"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2603.25144",
    "kind": "arxiv",
    "version": 2
  }
}