Pith Number

pith:UV4ATNDE

pith:2022:UV4ATNDEUOVNWGJTOZ5GJKXFYI

not attested not anchored not stored refs pending

GradTail: Learning Long-Tailed Data Using Gradient-based Sample Weighting

Dragomir Anguelov, Henrik Kretzschmar, Vincent Casser, Zhao Chen

arxiv:2201.05938 v2 · 2022-01-16 · cs.LG · 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{UV4ATNDEUOVNWGJTOZ5GJKXFYI}

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	2026-07-05T03:49:44.035409Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a57809b464a3aadb1933767a64aae5c23aa8ae1ee569b63a6d213249f58c4f4f

Aliases

arxiv: 2201.05938 · arxiv_version: 2201.05938v2 · doi: 10.48550/arxiv.2201.05938 · pith_short_12: UV4ATNDEUOVN · pith_short_16: UV4ATNDEUOVNWGJT · pith_short_8: UV4ATNDE

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/UV4ATNDEUOVNWGJTOZ5GJKXFYI \
  | 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: a57809b464a3aadb1933767a64aae5c23aa8ae1ee569b63a6d213249f58c4f4f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e62fd0f180640bb62ae03bfadca55c046691402bd1a2b137223b7750c2aaeee5",
    "cross_cats_sorted": [
      "cs.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2022-01-16T00:37:39Z",
    "title_canon_sha256": "a69ab13500caab9b364a078f39f9a76cba881833e37035e0fbfb3488e6acf89b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2201.05938",
    "kind": "arxiv",
    "version": 2
  }
}