Pith Number

pith:7YDOGNXO

pith:2021:7YDOGNXOXWSSCWW4E4KUZ5SH3U

not attested not anchored not stored refs pending

Messaging with Purpose Limitation -- Privacy-Compliant Publish-Subscribe Systems

Frank Pallas, Karl Wolf, Stefan Tai

arxiv:2110.15150 v1 · 2021-10-28 · 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{7YDOGNXOXWSSCWW4E4KUZ5SH3U}

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	2026-07-05T03:26:52.242303Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fe06e336eebda5215adc27154cf647dd16cd24a004c60f928baea43572a762e7

Aliases

arxiv: 2110.15150 · arxiv_version: 2110.15150v1 · doi: 10.48550/arxiv.2110.15150 · pith_short_12: 7YDOGNXOXWSS · pith_short_16: 7YDOGNXOXWSSCWW4 · pith_short_8: 7YDOGNXO

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/7YDOGNXOXWSSCWW4E4KUZ5SH3U \
  | 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: fe06e336eebda5215adc27154cf647dd16cd24a004c60f928baea43572a762e7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4809ffcab96f602ec08f31594136616277fb77b85e1700b1dbf87357b98aae5d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2021-10-28T14:21:14Z",
    "title_canon_sha256": "3d6dfe5ba4cd41dd6d7d787e5b0dbe2ab30f34f26f23589fd3cb9a83305f2d34"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2110.15150",
    "kind": "arxiv",
    "version": 1
  }
}