Pith Number

pith:KCBKT6XZ

pith:2021:KCBKT6XZ3WVGDOD3OF6UCNHA2Q

not attested not anchored not stored refs pending

ROPUST: Improving Robustness through Fine-tuning with Photonic Processors and Synthetic Gradients

Alessandro Cappelli, Iacopo Poli, Julien Launay, Laurent Meunier, Ruben Ohana

arxiv:2108.04217 v1 · 2021-07-06 · cs.CV · 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{KCBKT6XZ3WVGDOD3OF6UCNHA2Q}

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	2026-07-05T03:04:13.888725Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5082a9faf9ddaa61b87b717d4134e0d414712d97f927df5aba3a02194ea565e2

Aliases

arxiv: 2108.04217 · arxiv_version: 2108.04217v1 · doi: 10.48550/arxiv.2108.04217 · pith_short_12: KCBKT6XZ3WVG · pith_short_16: KCBKT6XZ3WVGDOD3 · pith_short_8: KCBKT6XZ

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/KCBKT6XZ3WVGDOD3OF6UCNHA2Q \
  | 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: 5082a9faf9ddaa61b87b717d4134e0d414712d97f927df5aba3a02194ea565e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c4ca5d65d38575db2748de3bc38ddd1e292a95b7e801e56a6c48907e04b08c14",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-07-06T12:03:36Z",
    "title_canon_sha256": "3084a12364578613e95c6add283d7a511f6124a4dc3afe9bb4b0d1678a888c3c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.04217",
    "kind": "arxiv",
    "version": 1
  }
}