Pith Number

pith:2O623JKB

pith:2019:2O623JKBADFLRDCK6GPZGJ3GZ7

not attested not anchored not stored refs pending

Challenges for Verifying and Validating Scientific Software in Computational Materials Science

Claudia Draxl, Lars Grunske, Markus Scheidgen, Stephan Druskat, Thomas Vogel

arxiv:1906.09179 v1 · 2019-06-21 · 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{2O623JKBADFLRDCK6GPZGJ3GZ7}

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	2026-05-17T23:42:44.274760Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3bdada54100cab88c4af19f932766cfff2086bfa90193c9f03f6a71d847d17d

Aliases

arxiv: 1906.09179 · arxiv_version: 1906.09179v1 · doi: 10.48550/arxiv.1906.09179 · pith_short_12: 2O623JKBADFL · pith_short_16: 2O623JKBADFLRDCK · pith_short_8: 2O623JKB

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/2O623JKBADFLRDCK6GPZGJ3GZ7 \
  | 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: d3bdada54100cab88c4af19f932766cfff2086bfa90193c9f03f6a71d847d17d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3dbc3c3275191f5b19771b7fb5467393d30d7575ef63322ebf93d5b14c426bc8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2019-06-21T15:00:38Z",
    "title_canon_sha256": "e6acfedd13b5b343c39fb136cdd27db07872ad29bc3d68179dd41272da17670a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.09179",
    "kind": "arxiv",
    "version": 1
  }
}