Pith Number

pith:X5UMZDX7

pith:2012:X5UMZDX7JBVMJJYQQGKYAUNLMV

not attested not anchored not stored refs pending

Privacy Design Strategies

Jaap-Henk Hoepman

arxiv:1210.6621 v2 · 2012-10-24 · 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{X5UMZDX7JBVMJJYQQGKYAUNLMV}

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	2026-05-18T03:26:32.289424Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bf68cc8eff486ac4a71081958051ab657e681b740e532b8960580d04c7125f4e

Aliases

arxiv: 1210.6621 · arxiv_version: 1210.6621v2 · doi: 10.48550/arxiv.1210.6621 · pith_short_12: X5UMZDX7JBVM · pith_short_16: X5UMZDX7JBVMJJYQ · pith_short_8: X5UMZDX7

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/X5UMZDX7JBVMJJYQQGKYAUNLMV \
  | 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: bf68cc8eff486ac4a71081958051ab657e681b740e532b8960580d04c7125f4e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c13a725d1ab4743c4c8c49b8f509e2429641e452d24789894581d8aa48edb0ff",
    "cross_cats_sorted": [
      "cs.CR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2012-10-24T18:25:32Z",
    "title_canon_sha256": "9663b873f3f721806e614e08ab4a51a4d995530a2a4dce319b0092d6f4ed1912"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.6621",
    "kind": "arxiv",
    "version": 2
  }
}