Pith Number

pith:MBCGCB66

pith:2019:MBCGCB66PYZCZKFX5YDNDYABPM

not attested not anchored not stored refs pending

The standard coder: a machine learning approach to measuring the effort required to produce source code change

Albert Ziegler, Ian Wright

arxiv:1903.02436 v1 · 2019-03-06 · 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{MBCGCB66PYZCZKFX5YDNDYABPM}

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	2026-05-17T23:51:55.325065Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

60446107de7e322ca8b7ee06d1e0017b3a9fe87866671e10f710c54a95172845

Aliases

arxiv: 1903.02436 · arxiv_version: 1903.02436v1 · doi: 10.48550/arxiv.1903.02436 · pith_short_12: MBCGCB66PYZC · pith_short_16: MBCGCB66PYZCZKFX · pith_short_8: MBCGCB66

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/MBCGCB66PYZCZKFX5YDNDYABPM \
  | 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: 60446107de7e322ca8b7ee06d1e0017b3a9fe87866671e10f710c54a95172845

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "396fab41752e903067bba4f1d4ef350b4b6e8a3f31ed301dbf6f5751c4034b50",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2019-03-06T15:05:06Z",
    "title_canon_sha256": "af207fcd46272b2cb12ac53df8cdcf56c509e4397b2d0d65f3f341a4d03608e3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.02436",
    "kind": "arxiv",
    "version": 1
  }
}