Pith Number

pith:BWD2XQ6B

pith:2019:BWD2XQ6B5W7NJ2SV4QKZ5FESEO

not attested not anchored not stored refs pending

What Do Developers Ask About ML Libraries? A Large-scale Study Using Stack Overflow

Hoan Anh Nguyen, Hridesh Rajan, Md Johirul Islam, Rangeet Pan

arxiv:1906.11940 v1 · 2019-06-27 · cs.SE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BWD2XQ6B5W7NJ2SV4QKZ5FESEO}

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	2026-05-17T23:42:01.532266Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0d87abc3c1edbed4ea55e4159e949223973964edc4935edf41c05f0348a9734b

Aliases

arxiv: 1906.11940 · arxiv_version: 1906.11940v1 · doi: 10.48550/arxiv.1906.11940 · pith_short_12: BWD2XQ6B5W7N · pith_short_16: BWD2XQ6B5W7NJ2SV · pith_short_8: BWD2XQ6B

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/BWD2XQ6B5W7NJ2SV4QKZ5FESEO \
  | 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: 0d87abc3c1edbed4ea55e4159e949223973964edc4935edf41c05f0348a9734b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1aa643e14c30035bee9c9d63c13e71e6c98c09a5eb23a3e741ae3333dcb298d7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2019-06-27T20:15:23Z",
    "title_canon_sha256": "e7cf503313494d1598623d1b6344289a6c8635d29cfc06fd18eb5476d4f2cdf0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.11940",
    "kind": "arxiv",
    "version": 1
  }
}