Pith Number

pith:ZBTAC247

pith:2025:ZBTAC247HKD5N576ZJYQICWCIO

not attested not anchored not stored refs pending

Countering Privacy Nihilism

Helen Nissenbaum, Severin Engelmann

arxiv:2507.18253 v1 · 2025-07-24 · cs.CY · cs.CR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZBTAC247HKD5N576ZJYQICWCIO}

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	2026-07-05T11:42:44.601599Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c866016b9f3a87d6f7feca71040ac243a50d4f225634fe6486be1ce0430efc53

Aliases

arxiv: 2507.18253 · arxiv_version: 2507.18253v1 · doi: 10.48550/arxiv.2507.18253 · pith_short_12: ZBTAC247HKD5 · pith_short_16: ZBTAC247HKD5N576 · pith_short_8: ZBTAC247

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/ZBTAC247HKD5N576ZJYQICWCIO \
  | 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: c866016b9f3a87d6f7feca71040ac243a50d4f225634fe6486be1ce0430efc53

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dec68cb73b45e3378bdc592c9678d4e2142a367ce0686d5f76692f993ddf10c2",
    "cross_cats_sorted": [
      "cs.CR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2025-07-24T09:52:18Z",
    "title_canon_sha256": "1b59b177f45c559a831ce0f0a78c06c176c2b82f515aa0c021d0aa03a022fbfb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.18253",
    "kind": "arxiv",
    "version": 1
  }
}