Pith Number

pith:2CUFU7LH

pith:2018:2CUFU7LHIAQAYADRQR2GZMENJH

not attested not anchored not stored refs pending

Why and How Java Developers Break APIs

Aline Brito, Andre Hora, Laerte Xavier, Marco Tulio Valente

arxiv:1801.05198 v1 · 2018-01-16 · 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{2CUFU7LHIAQAYADRQR2GZMENJH}

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	2026-05-18T00:08:36.133380Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d0a85a7d6740200c007184746cb08d49faf03515fccddbf28b8b09ff87290ec6

Aliases

arxiv: 1801.05198 · arxiv_version: 1801.05198v1 · doi: 10.48550/arxiv.1801.05198 · pith_short_12: 2CUFU7LHIAQA · pith_short_16: 2CUFU7LHIAQAYADR · pith_short_8: 2CUFU7LH

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/2CUFU7LHIAQAYADRQR2GZMENJH \
  | 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: d0a85a7d6740200c007184746cb08d49faf03515fccddbf28b8b09ff87290ec6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cf9f391eda16fd95a43cb9cf6f5694f2a46b40cff2739e6eac2f2b908791e31c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2018-01-16T10:36:18Z",
    "title_canon_sha256": "e84ff3f4f9f3c10389f62c5b12bb1a59f0e4838bc4ddcd838bb0feebab036213"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.05198",
    "kind": "arxiv",
    "version": 1
  }
}