Pith Number

pith:XFBDL465

pith:2019:XFBDL465LA3SXEZPGPOGYDZJXI

not attested not anchored not stored refs pending

Beyond Cookie Monster Amnesia: Real World Persistent Online Tracking

Chris J Mitchell, Nasser Mohammed Al-Fannah, Wanpeng Li

arxiv:1905.09581 v1 · 2019-05-23 · 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{XFBDL465LA3SXEZPGPOGYDZJXI}

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	2026-05-17T23:45:16.652617Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b94235f3dd58372b932f33dc6c0f29ba21169bb16a14e033befc340a0d5a42de

Aliases

arxiv: 1905.09581 · arxiv_version: 1905.09581v1 · doi: 10.48550/arxiv.1905.09581 · pith_short_12: XFBDL465LA3S · pith_short_16: XFBDL465LA3SXEZP · pith_short_8: XFBDL465

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/XFBDL465LA3SXEZPGPOGYDZJXI \
  | 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: b94235f3dd58372b932f33dc6c0f29ba21169bb16a14e033befc340a0d5a42de

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0ce554793e5258bbb9c140c0b155beedee21d90a9788e82bf7c6798a37ba1624",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2019-05-23T10:48:55Z",
    "title_canon_sha256": "285407e405805374a049a3c3049487d8d9ccdc6fe13542610334473dbabd8b51"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.09581",
    "kind": "arxiv",
    "version": 1
  }
}