Pith Number

pith:3RZ4JC45

pith:2019:3RZ4JC4525FLPCYIL5MRKNK2KR

not attested not anchored not stored refs pending

Characterizing the transition to Kotlin of Android apps: a study on F-Droid, Play Store and GitHub

Luca Ardito, Marco Torchiano, Riccardo Coppola

arxiv:1908.06412 v1 · 2019-08-18 · 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{3RZ4JC4525FLPCYIL5MRKNK2KR}

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	2026-07-04T23:58:15.542557Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dc73c48b9dd74ab78b085f5915355a546e7716c426d7c3c23aefd4cfa1863e17

Aliases

arxiv: 1908.06412 · arxiv_version: 1908.06412v1 · doi: 10.48550/arxiv.1908.06412 · pith_short_12: 3RZ4JC4525FL · pith_short_16: 3RZ4JC4525FLPCYI · pith_short_8: 3RZ4JC45

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/3RZ4JC4525FLPCYIL5MRKNK2KR \
  | 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: dc73c48b9dd74ab78b085f5915355a546e7716c426d7c3c23aefd4cfa1863e17

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "83c20b1d2435a2ae4cb59f950f9b6c1e5e9a38db0d40edc9fc591692e13f3be2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2019-08-18T09:46:36Z",
    "title_canon_sha256": "bba27069d050eff73dd6d533ce4612ed167376b9b50940835b46eaf4a5076820"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.06412",
    "kind": "arxiv",
    "version": 1
  }
}