Pith Number

pith:RKCS2TGA

pith:2013:RKCS2TGAURNBNBHM3WTUVGMLCJ

not attested not anchored not stored refs pending

Empirical Evidence of Large-Scale Diversity in API Usage of Object-Oriented Software

Benoit Baudry (INRIA - Irisa), Diego Mendez (INRIA Lille - Nord Europe), Martin Monperrus (INRIA Lille - Nord Europe)

arxiv:1307.4062 v2 · 2013-07-15 · 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{RKCS2TGAURNBNBHM3WTUVGMLCJ}

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	2026-05-18T00:11:29.166712Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8a852d4cc0a45a1684ecdda74a998b1245b256953edb5b2a0c79f2e014699bb3

Aliases

arxiv: 1307.4062 · arxiv_version: 1307.4062v2 · doi: 10.48550/arxiv.1307.4062 · pith_short_12: RKCS2TGAURNB · pith_short_16: RKCS2TGAURNBNBHM · pith_short_8: RKCS2TGA

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/RKCS2TGAURNBNBHM3WTUVGMLCJ \
  | 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: 8a852d4cc0a45a1684ecdda74a998b1245b256953edb5b2a0c79f2e014699bb3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "90f421221e46d5f3fe3ef16061c8b7331dc276908b935053e47ca26657036af4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2013-07-15T19:26:23Z",
    "title_canon_sha256": "b517536cc85e9688e8f51edf3406010316a0f3b4c71f92b29ee849c930f3358b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.4062",
    "kind": "arxiv",
    "version": 2
  }
}