Pith Number

pith:PI5RZKZQ

pith:2019:PI5RZKZQ3QGM7WC2VDRECBV3T3

not attested not anchored not stored refs pending

Class-Balanced Loss Based on Effective Number of Samples

Menglin Jia, Serge Belongie, Tsung-Yi Lin, Yang Song, Yin Cui

arxiv:1901.05555 v1 · 2019-01-16 · 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{PI5RZKZQ3QGM7WC2VDRECBV3T3}

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	2026-05-17T23:56:06.799093Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7a3b1cab30dc0ccfd85aa8e24106bb9eef9a0382de18353f6b10ea316444ef32

Aliases

arxiv: 1901.05555 · arxiv_version: 1901.05555v1 · doi: 10.48550/arxiv.1901.05555 · pith_short_12: PI5RZKZQ3QGM · pith_short_16: PI5RZKZQ3QGM7WC2 · pith_short_8: PI5RZKZQ

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/PI5RZKZQ3QGM7WC2VDRECBV3T3 \
  | 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: 7a3b1cab30dc0ccfd85aa8e24106bb9eef9a0382de18353f6b10ea316444ef32

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "262bc83ec20832c670fd08f34b68518fa5d6d1d84b5a650bc1137fef02ae2da3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-01-16T23:03:45Z",
    "title_canon_sha256": "715a50ec3b879f3c708c022baa5f1ef193bd552d73f7df2b19757f99529535d8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.05555",
    "kind": "arxiv",
    "version": 1
  }
}