Pith Number

pith:ZFBJZIRY

pith:2018:ZFBJZIRY4HGOEG3LUFJQZ4NYWC

not attested not anchored not stored refs pending

Source Code Optimization using Equivalent Mutants

Jorge L\'opez, Natalia Kushik, Nina Yevtushenko

arxiv:1803.09571 v2 · 2018-03-26 · 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{ZFBJZIRY4HGOEG3LUFJQZ4NYWC}

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	2026-05-18T00:11:49.511384Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c9429ca238e1cce21b6ba1530cf1b8b0b4a37b07ea94aff8e2e595c11f349a44

Aliases

arxiv: 1803.09571 · arxiv_version: 1803.09571v2 · doi: 10.48550/arxiv.1803.09571 · pith_short_12: ZFBJZIRY4HGO · pith_short_16: ZFBJZIRY4HGOEG3L · pith_short_8: ZFBJZIRY

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/ZFBJZIRY4HGOEG3LUFJQZ4NYWC \
  | 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: c9429ca238e1cce21b6ba1530cf1b8b0b4a37b07ea94aff8e2e595c11f349a44

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0357fba28f8eb29ff9361afea2d0b4fae7356712fbdb0f5c48c3a8a1a1f4490e",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2018-03-26T13:23:17Z",
    "title_canon_sha256": "3362b5ddd860c3d345ff89953a232b41a40bda18776b15e4c6724233d9eea414"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.09571",
    "kind": "arxiv",
    "version": 2
  }
}