Pith Number

pith:Q3W4XWEC

pith:2019:Q3W4XWECALRPYA6K3C76GLOCAC

not attested not anchored not stored refs pending

Learning Fitness Functions for Machine Programming

Abdullah Muzahid, Javier S. Turek, Justin Gottschlich, Shantanu Mandal, Shengtian Zhou, Todd A. Anderson

arxiv:1908.08783 v5 · 2019-08-22 · cs.NE · cs.LG · 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{Q3W4XWECALRPYA6K3C76GLOCAC}

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	2026-07-05T05:57:08.377717Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

86edcbd88202e2fc03cad8bfe32dc200a9d681002ef69a88919da6e5e1ed3761

Aliases

arxiv: 1908.08783 · arxiv_version: 1908.08783v5 · doi: 10.48550/arxiv.1908.08783 · pith_short_12: Q3W4XWECALRP · pith_short_16: Q3W4XWECALRPYA6K · pith_short_8: Q3W4XWEC

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/Q3W4XWECALRPYA6K3C76GLOCAC \
  | 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: 86edcbd88202e2fc03cad8bfe32dc200a9d681002ef69a88919da6e5e1ed3761

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "61f8f41d391662653e0727245d6f8fb41a4f8a2f057cc90ccb8608de2eb8a2c9",
    "cross_cats_sorted": [
      "cs.LG",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NE",
    "submitted_at": "2019-08-22T17:47:34Z",
    "title_canon_sha256": "432ca28cd29b8b3a0e9fc15ab9e1f021588b2480af222f9644aa90337e2ebbd0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.08783",
    "kind": "arxiv",
    "version": 5
  }
}