Pith Number

pith:BUXRYS37

pith:2017:BUXRYS3757EWBS2UMRAAKFEBK5

not attested not anchored not stored refs pending

Tangent: Automatic Differentiation Using Source Code Transformation in Python

Alexander B. Wiltschko, Bart van Merri\"enboer, Dan Moldovan

arxiv:1711.02712 v1 · 2017-11-07 · cs.MS · 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{BUXRYS3757EWBS2UMRAAKFEBK5}

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	2026-05-18T00:31:02.005719Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0d2f1c4b7fefc960cb5464400514815759fb009c4977ee2dbe5db7f2aae2b499

Aliases

arxiv: 1711.02712 · arxiv_version: 1711.02712v1 · doi: 10.48550/arxiv.1711.02712 · pith_short_12: BUXRYS3757EW · pith_short_16: BUXRYS3757EWBS2U · pith_short_8: BUXRYS37

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/BUXRYS3757EWBS2UMRAAKFEBK5 \
  | 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: 0d2f1c4b7fefc960cb5464400514815759fb009c4977ee2dbe5db7f2aae2b499

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "251cb27d3132fd46120b074c00902566951cc2e96a0789d5c19ae80427d62483",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.MS",
    "submitted_at": "2017-11-07T20:15:24Z",
    "title_canon_sha256": "efae137c8c269f26fa6e058d8329f664e97a9a5e32a8d08a30ba9c7720acbdd7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.02712",
    "kind": "arxiv",
    "version": 1
  }
}