Pith Number

pith:WFFZ6ZYF

pith:2016:WFFZ6ZYFIONP7BUUIZVOJR4KNE

not attested not anchored not stored refs pending

Testing Quality Requirements of a System-of-Systems in the Public Sector - Challenges and Potential Remedies

Jacob Larsson, Markus Borg, Thomas Olsson

arxiv:1602.05618 v1 · 2016-02-17 · 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{WFFZ6ZYFIONP7BUUIZVOJR4KNE}

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	2026-05-18T01:20:23.659707Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b14b9f6705439aff8694466ae4c78a691f2f71d347a760c6c4f7aad25c20d933

Aliases

arxiv: 1602.05618 · arxiv_version: 1602.05618v1 · doi: 10.48550/arxiv.1602.05618 · pith_short_12: WFFZ6ZYFIONP · pith_short_16: WFFZ6ZYFIONP7BUU · pith_short_8: WFFZ6ZYF

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/WFFZ6ZYFIONP7BUUIZVOJR4KNE \
  | 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: b14b9f6705439aff8694466ae4c78a691f2f71d347a760c6c4f7aad25c20d933

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0288be93eb13dc420c09273ad28e7eb32b96d83b53990a1c530c0f3ee22754d9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2016-02-17T22:23:26Z",
    "title_canon_sha256": "59df0c5bd85db7198bd9192ede280eee4704eddd5af92005f9a88635a72cf740"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.05618",
    "kind": "arxiv",
    "version": 1
  }
}