Pith Number

pith:J4J32G4E

pith:2025:J4J32G4EOAKJTM5LZXIHFUTSK6

not attested not anchored not stored refs pending

Enhancing Pre-Trained Model-Based Class-Incremental Learning through Neural Collapse

John E. Hopcroft, Kun He, Shuoxi Zhang, Zijian Song

arxiv:2504.18437 v1 · 2025-04-25 · cs.LG · 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{J4J32G4EOAKJTM5LZXIHFUTSK6}

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	2026-07-05T10:54:07.212221Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4f13bd1b84701499b3abcdd072d27257b6a1ea88b2fa8444e34ded06b47d479b

Aliases

arxiv: 2504.18437 · arxiv_version: 2504.18437v1 · doi: 10.48550/arxiv.2504.18437 · pith_short_12: J4J32G4EOAKJ · pith_short_16: J4J32G4EOAKJTM5L · pith_short_8: J4J32G4E

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/J4J32G4EOAKJTM5LZXIHFUTSK6 \
  | 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: 4f13bd1b84701499b3abcdd072d27257b6a1ea88b2fa8444e34ded06b47d479b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ad1fea995a22185529f3d9417149332d00e7f0dde8f45b279cbb24f3d52eaaa1",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-04-25T15:48:41Z",
    "title_canon_sha256": "2957c46ea0a5ae4110d34aa23e14481fd9d235a0e7bc09ea31f31472f2507216"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.18437",
    "kind": "arxiv",
    "version": 1
  }
}