Pith Number

pith:C7FB2ZWO

pith:2017:C7FB2ZWOGNBU3KHPXKP4OVTV3Z

not attested not anchored not stored refs pending

Forward and Reverse Gradient-Based Hyperparameter Optimization

Luca Franceschi, Massimiliano Pontil, Michele Donini, Paolo Frasconi

arxiv:1703.01785 v3 · 2017-03-06 · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{C7FB2ZWOGNBU3KHPXKP4OVTV3Z}

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	2026-05-18T00:28:16.104637Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

17ca1d66ce33434da8efba9fc75675de595b4b00c785d7ff44a164cf38a0ef03

Aliases

arxiv: 1703.01785 · arxiv_version: 1703.01785v3 · doi: 10.48550/arxiv.1703.01785 · pith_short_12: C7FB2ZWOGNBU · pith_short_16: C7FB2ZWOGNBU3KHP · pith_short_8: C7FB2ZWO

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/C7FB2ZWOGNBU3KHPXKP4OVTV3Z \
  | 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: 17ca1d66ce33434da8efba9fc75675de595b4b00c785d7ff44a164cf38a0ef03

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b8c4a889469141d638d872f9e991dac25f5f6471e0b30200a9b3ae6d8a4de3fb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2017-03-06T09:44:32Z",
    "title_canon_sha256": "2bb4a1cbd6c268d034d08f7edc5127e54cc617a6cdbf441eab4f65927e26f6db"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.01785",
    "kind": "arxiv",
    "version": 3
  }
}