Pith Number

pith:QLHWVNTJ

pith:2021:QLHWVNTJD7PBMDSOO2NF5PYJDU

not attested not anchored not stored refs pending

Contrastive Learning based Hybrid Networks for Long-Tailed Image Classification

Kai Han, Lei Wang, Lei Zhang, Peng Wang, Xiu-Shen Wei

arxiv:2103.14267 v1 · 2021-03-26 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QLHWVNTJD7PBMDSOO2NF5PYJDU}

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	2026-07-05T02:26:32.202811Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

82cf6ab6691fde160e4e769a5ebf091d086efb1a71da324b82b94bf81be84e56

Aliases

arxiv: 2103.14267 · arxiv_version: 2103.14267v1 · doi: 10.48550/arxiv.2103.14267 · pith_short_12: QLHWVNTJD7PB · pith_short_16: QLHWVNTJD7PBMDSO · pith_short_8: QLHWVNTJ

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/QLHWVNTJD7PBMDSOO2NF5PYJDU \
  | 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: 82cf6ab6691fde160e4e769a5ebf091d086efb1a71da324b82b94bf81be84e56

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b71d83510b2a41ba5d7555d3a8c028a362a3b0147357efe038d5b563a6a94f03",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-03-26T05:22:36Z",
    "title_canon_sha256": "e688188c92b58583a73b7158e2054b4e4b7f6d6366b1cba26a0ebc774fc8fbfb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.14267",
    "kind": "arxiv",
    "version": 1
  }
}