Pith Number

pith:P2DKH3LN

pith:2020:P2DKH3LN4DDVWZYTYJVRLX2Y3F

not attested not anchored not stored refs pending

Equalization Loss for Long-Tailed Object Recognition

Buyu Li, Changbao Wang, Changqing Yin, Jingru Tan, Junjie Yan, Quanquan Li, Wanli Ouyang

arxiv:2003.05176 v2 · 2020-03-11 · 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{P2DKH3LN4DDVWZYTYJVRLX2Y3F}

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	2026-07-05T00:54:47.963139Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e86a3ed6de0c75b6713c26b15df58d956e777954356ff15b1c05a542673364b

Aliases

arxiv: 2003.05176 · arxiv_version: 2003.05176v2 · doi: 10.48550/arxiv.2003.05176 · pith_short_12: P2DKH3LN4DDV · pith_short_16: P2DKH3LN4DDVWZYT · pith_short_8: P2DKH3LN

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/P2DKH3LN4DDVWZYTYJVRLX2Y3F \
  | 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: 7e86a3ed6de0c75b6713c26b15df58d956e777954356ff15b1c05a542673364b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5662b0affabd2d958c2ec89e1b5ef290f10c91c98c0087b8bfd4ffa6a0a489db",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2020-03-11T09:14:53Z",
    "title_canon_sha256": "31054a1067117ef4ae8dd48109af8667edc14981b0da8cc5eb5ca9e9c7090773"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2003.05176",
    "kind": "arxiv",
    "version": 2
  }
}