Pith Number

pith:SAOK2DLM

pith:2025:SAOK2DLMAOJ5C5XFLKJME7VX2J

not attested not anchored not stored refs pending

How Much Can a Behavior-Preserving Changeset Be Decomposed into Refactoring Operations?

Kota Someya, Lei Chen, Michael J. Decker, Shinpei Hayashi

arxiv:2508.11993 v1 · 2025-08-16 · 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{SAOK2DLMAOJ5C5XFLKJME7VX2J}

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	2026-07-05T11:54:58.420649Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

901cad0d6c0393d176e55a92c27eb7d264004b4b0cb6110e3faaa6c790ad82aa

Aliases

arxiv: 2508.11993 · arxiv_version: 2508.11993v1 · doi: 10.48550/arxiv.2508.11993 · pith_short_12: SAOK2DLMAOJ5 · pith_short_16: SAOK2DLMAOJ5C5XF · pith_short_8: SAOK2DLM

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/SAOK2DLMAOJ5C5XFLKJME7VX2J \
  | 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: 901cad0d6c0393d176e55a92c27eb7d264004b4b0cb6110e3faaa6c790ad82aa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b96c5cf5e77fbb00df9968959f6648167dfa937defe43cc474848f437bdacf3a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2025-08-16T09:29:51Z",
    "title_canon_sha256": "28afa7209dda3e9ef53786f09873105826fe7a9967aa8d17bf80ea1357c462aa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.11993",
    "kind": "arxiv",
    "version": 1
  }
}