Pith Number

pith:O4TXZLKY

pith:2019:O4TXZLKY4JLSUN4IMS5QY7SGBJ

not attested not anchored not stored refs pending

Towards Improved Testing For Deep Learning

Cody Fleming, Jasmine Sekhon

arxiv:1902.06320 v1 · 2019-02-17 · cs.SE · 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{O4TXZLKY4JLSUN4IMS5QY7SGBJ}

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	2026-05-17T23:53:45.876748Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

77277cad58e2572a378864bb0c7e460a5be7ce45373e95dcb66bd7a8c7e6f293

Aliases

arxiv: 1902.06320 · arxiv_version: 1902.06320v1 · doi: 10.48550/arxiv.1902.06320 · pith_short_12: O4TXZLKY4JLS · pith_short_16: O4TXZLKY4JLSUN4I · pith_short_8: O4TXZLKY

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/O4TXZLKY4JLSUN4IMS5QY7SGBJ \
  | 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: 77277cad58e2572a378864bb0c7e460a5be7ce45373e95dcb66bd7a8c7e6f293

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a4b14f483aca0c40579ecfe40230020d6120d2b430e82c179fca9e18511aaad3",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2019-02-17T20:25:02Z",
    "title_canon_sha256": "a6228406a23147f162968b9d9559e71fc93437e9c0829f49afc3ac6459e7fd4e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.06320",
    "kind": "arxiv",
    "version": 1
  }
}