Pith Number

pith:BQNGPA7C

pith:2019:BQNGPA7CYTBY2ZFKHHYOPOSUQS

not attested not anchored not stored refs pending

Making GDPR Usable: A Model to Support Usability Evaluations of Privacy

Johanna Johansen, Simone Fischer-H\"ubner

arxiv:1908.03503 v5 · 2019-08-09 · cs.HC · cs.CR · cs.CY

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BQNGPA7CYTBY2ZFKHHYOPOSUQS}

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	2026-07-05T01:25:22.290732Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0c1a6783e2c4c38d64aa39f0e7ba54848cf50f771bcbe72911a4cde3d75a28af

Aliases

arxiv: 1908.03503 · arxiv_version: 1908.03503v5 · doi: 10.48550/arxiv.1908.03503 · pith_short_12: BQNGPA7CYTBY · pith_short_16: BQNGPA7CYTBY2ZFK · pith_short_8: BQNGPA7C

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/BQNGPA7CYTBY2ZFKHHYOPOSUQS \
  | 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: 0c1a6783e2c4c38d64aa39f0e7ba54848cf50f771bcbe72911a4cde3d75a28af

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a587d35c5cb2ec79c77dee282ee5776eac28cac6e231117c3b676fa73c3e3fe7",
    "cross_cats_sorted": [
      "cs.CR",
      "cs.CY"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.HC",
    "submitted_at": "2019-08-09T15:46:15Z",
    "title_canon_sha256": "84a713a83dc0f0cd82ecaf8bf2d503f67b6b4ce2b81a962ea1391f3cd6ca226a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.03503",
    "kind": "arxiv",
    "version": 5
  }
}