Pith Number

pith:72IVGE2B

pith:2020:72IVGE2BSA2327NFSUWX3RSZKA

not attested not anchored not stored refs pending

Train Like a (Var)Pro: Efficient Training of Neural Networks with Variable Projection

Bart van Bloemen Waanders, Elizabeth Newman, Joseph Hart, Lars Ruthotto

arxiv:2007.13171 v2 · 2020-07-26 · cs.LG · cs.NA · math.NA · math.OC · 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{72IVGE2BSA2327NFSUWX3RSZKA}

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

Weight-Parameterization in Continuous Time Deep Neural Networks for Surrogate Modeling

Receipt and verification

First computed	2026-07-05T02:33:19.061364Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fe915313419035bd7da5952d7dc6595027996a078e8a7c6a17668bcae3530db1

Aliases

arxiv: 2007.13171 · arxiv_version: 2007.13171v2 · doi: 10.48550/arxiv.2007.13171 · pith_short_12: 72IVGE2BSA23 · pith_short_16: 72IVGE2BSA2327NF · pith_short_8: 72IVGE2B

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/72IVGE2BSA2327NFSUWX3RSZKA \
  | 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: fe915313419035bd7da5952d7dc6595027996a078e8a7c6a17668bcae3530db1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3195e90e7a79095875e90d32faf7b1cd933f62384e0f904f47e74f79a07e6550",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA",
      "math.OC",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2020-07-26T16:29:39Z",
    "title_canon_sha256": "8f88a1662eae546555def7057c95ee7fe8adfe9e43a069d74166a2b296276548"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2007.13171",
    "kind": "arxiv",
    "version": 2
  }
}