Pith Number

pith:6N4LD54U

pith:2025:6N4LD54UC57KXMS2SEQZGXND4P

not attested not anchored not stored refs pending

Sparser, Better, Faster, Stronger: Sparsity Detection for Efficient Automatic Differentiation

Adrian Hill, Guillaume Dalle

arxiv:2501.17737 v2 · 2025-01-29 · cs.LG · cs.MS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6N4LD54UC57KXMS2SEQZGXND4P}

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.

Cited by

1 paper in Pith

Implicit differentiation with second-order derivatives and benchmarks in finite-element-based differentiable physics

Receipt and verification

First computed	2026-07-05T11:19:50.941669Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f378b1f794177eabb25a9121935da3e3ed78c271cdaf69d747a3bcc1bf0deb43

Aliases

arxiv: 2501.17737 · arxiv_version: 2501.17737v2 · doi: 10.48550/arxiv.2501.17737 · pith_short_12: 6N4LD54UC57K · pith_short_16: 6N4LD54UC57KXMS2 · pith_short_8: 6N4LD54U

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/6N4LD54UC57KXMS2SEQZGXND4P \
  | 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: f378b1f794177eabb25a9121935da3e3ed78c271cdaf69d747a3bcc1bf0deb43

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "638cdfe464ed9317b4ff6ae2bd258e9079e5b27ef2a7d38ab83fb7c7b9c80096",
    "cross_cats_sorted": [
      "cs.MS"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-01-29T16:21:54Z",
    "title_canon_sha256": "b259341726cc48f8b8ad8d3500fa027e22af6031ef9ef382b253afbe69b87ada"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.17737",
    "kind": "arxiv",
    "version": 2
  }
}