Pith Number

pith:UBCZ26BJ

pith:2021:UBCZ26BJWWGLO37DEXZPEMJ7IA

not attested not anchored not stored refs pending

Finding High-Value Training Data Subset through Differentiable Convex Programming

Arshdeep Singh, Saptarshi Chatterjee, Soumi Das, Sourangshu Bhattacharya, Suparna Bhattacharya

arxiv:2104.13794 v1 · 2021-04-28 · 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{UBCZ26BJWWGLO37DEXZPEMJ7IA}

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	2026-07-05T02:36:04.259469Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a0459d7829b58cb76fe325f2f2313f401d531d2eba13a62c78977f50b4264429

Aliases

arxiv: 2104.13794 · arxiv_version: 2104.13794v1 · doi: 10.48550/arxiv.2104.13794 · pith_short_12: UBCZ26BJWWGL · pith_short_16: UBCZ26BJWWGLO37D · pith_short_8: UBCZ26BJ

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/UBCZ26BJWWGLO37DEXZPEMJ7IA \
  | 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: a0459d7829b58cb76fe325f2f2313f401d531d2eba13a62c78977f50b4264429

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2ec113b03f52809a34f14a7548c58f12136abf1f34cf403f31dea90a6c48d95c",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2021-04-28T14:33:26Z",
    "title_canon_sha256": "f5bad71a48063344ec8af9eaba5c45bb3ea89abb386f87824b6a0d3efa9e9c7d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.13794",
    "kind": "arxiv",
    "version": 1
  }
}