Pith Number

pith:C7XXWVHA

pith:2019:C7XXWVHAMRX5K4J6P522DBIZ7S

not attested not anchored not stored refs pending

Modeling Vocabulary for Big Code Machine Learning

Andrea Janes, Hlib Babii, Romain Robbes

arxiv:1904.01873 v1 · 2019-04-03 · cs.CL · 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{C7XXWVHAMRX5K4J6P522DBIZ7S}

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	2026-05-17T23:49:29.388094Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

17ef7b54e0646fd5713e7f75a18519fc8be37b3e500f370d6bbe0b3162a22a24

Aliases

arxiv: 1904.01873 · arxiv_version: 1904.01873v1 · doi: 10.48550/arxiv.1904.01873 · pith_short_12: C7XXWVHAMRX5 · pith_short_16: C7XXWVHAMRX5K4J6 · pith_short_8: C7XXWVHA

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/C7XXWVHAMRX5K4J6P522DBIZ7S \
  | 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: 17ef7b54e0646fd5713e7f75a18519fc8be37b3e500f370d6bbe0b3162a22a24

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "78875e90a53e951eed810256e210aa6bad21ef8a9c771075d573fec1434b2b52",
    "cross_cats_sorted": [
      "cs.SE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2019-04-03T09:27:57Z",
    "title_canon_sha256": "89bddf1f8e9501fb737c7924af074030333f4057cb597f140f566d93550648e9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.01873",
    "kind": "arxiv",
    "version": 1
  }
}