Pith Number

pith:OOOJM5MV

pith:2021:OOOJM5MVFJCIRAZMR3CUQBGG2Z

not attested not anchored not stored refs pending

DER: Dynamically Expandable Representation for Class Incremental Learning

Jiangwei Xie, Shipeng Yan, Xuming He

arxiv:2103.16788 v1 · 2021-03-31 · cs.CV · 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{OOOJM5MVFJCIRAZMR3CUQBGG2Z}

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.

Cited by

1 paper in Pith

Forgetting in Language Models: Capacity, Optimization, and Self-Generated Replay

Receipt and verification

First computed	2026-07-05T02:27:58.394422Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

739c9675952a4488832c8ec54804c6d67494ea1ef133742903aa933eb59cf62e

Aliases

arxiv: 2103.16788 · arxiv_version: 2103.16788v1 · doi: 10.48550/arxiv.2103.16788 · pith_short_12: OOOJM5MVFJCI · pith_short_16: OOOJM5MVFJCIRAZM · pith_short_8: OOOJM5MV

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/OOOJM5MVFJCIRAZMR3CUQBGG2Z \
  | 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: 739c9675952a4488832c8ec54804c6d67494ea1ef133742903aa933eb59cf62e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "19f07772ed04c9412448aa3b7d5ad49b3c661494e415920880be00334d3871c5",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-03-31T03:16:44Z",
    "title_canon_sha256": "eaebfb6fb80d03bc804dde34994dc5d4409d15205e161162e19ea4d717fd10e9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.16788",
    "kind": "arxiv",
    "version": 1
  }
}