Pith Number

pith:OQ2GIEZR

pith:2022:OQ2GIEZRW5THT7NIR7EZUMYKHF

not attested not anchored not stored refs pending

The openCARP CDE -- Concept for and implementation of a sustainable collaborative development environment for research software

Axel Loewe, Felix Bach, Gunnar Seemann, Jochen Klar, Jorge S\'anchez, Robert Ulrich, Yung-Lin Huang

arxiv:2201.04434 v1 · 2022-01-12 · 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{OQ2GIEZRW5THT7NIR7EZUMYKHF}

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	2026-07-05T06:39:29.083783Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7434641331b76679fda88fc99a330a397d628fcaf6b85c492bba915500c999e9

Aliases

arxiv: 2201.04434 · arxiv_version: 2201.04434v1 · doi: 10.48550/arxiv.2201.04434 · pith_short_12: OQ2GIEZRW5TH · pith_short_16: OQ2GIEZRW5THT7NI · pith_short_8: OQ2GIEZR

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/OQ2GIEZRW5THT7NIR7EZUMYKHF \
  | 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: 7434641331b76679fda88fc99a330a397d628fcaf6b85c492bba915500c999e9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8fef01c3801444a5e61b9e09f7244d958dd3526084294736705efda7e41f3b07",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2022-01-12T12:06:01Z",
    "title_canon_sha256": "3a8d4137d3abba148057f94ee8f5b13392ce66b923d32391ab07a48af5cbb8d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2201.04434",
    "kind": "arxiv",
    "version": 1
  }
}