Pith Number

pith:2H3EUKFC

pith:2020:2H3EUKFCMPL5LWIUUKFWBJXYZQ

not attested not anchored not stored refs pending

Instead of Rewriting Foreign Code for Machine Learning, Automatically Synthesize Fast Gradients

Valentin Churavy, William S. Moses

arxiv:2010.01709 v1 · 2020-10-04 · cs.MS · cs.AI · cs.LG · cs.PF · cs.PL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2H3EUKFCMPL5LWIUUKFWBJXYZQ}

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

Julia for CFD: A Critical Survey of Ecosystem, Performance, and Composability

Receipt and verification

First computed	2026-07-05T04:45:55.378674Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d1f64a28a263d7d5d914a28b60a6f8cc05be8cdc000aa39aca21728265bd7606

Aliases

arxiv: 2010.01709 · arxiv_version: 2010.01709v1 · doi: 10.48550/arxiv.2010.01709 · pith_short_12: 2H3EUKFCMPL5 · pith_short_16: 2H3EUKFCMPL5LWIU · pith_short_8: 2H3EUKFC

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/2H3EUKFCMPL5LWIUUKFWBJXYZQ \
  | 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: d1f64a28a263d7d5d914a28b60a6f8cc05be8cdc000aa39aca21728265bd7606

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d74d577dae50e90d8cba4194db0b08c7a9bed22c6310ffe098d95154131203dc",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.LG",
      "cs.PF",
      "cs.PL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.MS",
    "submitted_at": "2020-10-04T22:32:51Z",
    "title_canon_sha256": "ecd4b50ad222a9965dda8366bebbe21bbf1baed37d8f5c4a89c6a4b72bd2a4f6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2010.01709",
    "kind": "arxiv",
    "version": 1
  }
}