Pith Number

pith:HBZT2HOY

pith:2019:HBZT2HOYYHU3AOPLF7ECJYUJ2N

not attested not anchored not stored refs pending

Modularization of Research Software for Collaborative Open Source Development

Alexander Krause, Christian Zirkelbach, Wilhelm Hasselbring

arxiv:1907.05663 v1 · 2019-07-12 · 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{HBZT2HOYYHU3AOPLF7ECJYUJ2N}

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	2026-05-17T23:40:47.404296Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

38733d1dd8c1e9b039eb2fc824e289d3503468d7d2dfe298793de71885dada0b

Aliases

arxiv: 1907.05663 · arxiv_version: 1907.05663v1 · doi: 10.48550/arxiv.1907.05663 · pith_short_12: HBZT2HOYYHU3 · pith_short_16: HBZT2HOYYHU3AOPL · pith_short_8: HBZT2HOY

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/HBZT2HOYYHU3AOPLF7ECJYUJ2N \
  | 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: 38733d1dd8c1e9b039eb2fc824e289d3503468d7d2dfe298793de71885dada0b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5f7446a1f24cc045d42e4631817cad1b3f354f3a7d223b212733d5ec6b8c8e9d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2019-07-12T10:27:42Z",
    "title_canon_sha256": "80a85f749d8ab890ea524d32254426231eb12be863824794855c3ebd7220a3bd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.05663",
    "kind": "arxiv",
    "version": 1
  }
}