Pith Number

pith:ET75IIDT

pith:2017:ET75IIDTICGFIDXFZBERSZDMYX

not attested not anchored not stored refs pending

When the cookie meets the blockchain: Privacy risks of web payments via cryptocurrencies

Arvind Narayanan, Dillon Reisman, Harry Kalodner, Steven Goldfeder

arxiv:1708.04748 v1 · 2017-08-16 · 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{ET75IIDTICGFIDXFZBERSZDMYX}

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	2026-05-18T00:37:58.020750Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

24ffd42073408c540ee5c84919646cc5f922cd8ac2b0e4d46bdc34de1c180010

Aliases

arxiv: 1708.04748 · arxiv_version: 1708.04748v1 · doi: 10.48550/arxiv.1708.04748 · pith_short_12: ET75IIDTICGF · pith_short_16: ET75IIDTICGFIDXF · pith_short_8: ET75IIDT

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/ET75IIDTICGFIDXFZBERSZDMYX \
  | 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: 24ffd42073408c540ee5c84919646cc5f922cd8ac2b0e4d46bdc34de1c180010

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "da473fdf63bf975af07ca7a25c94728f37db55f227cac612521d4f2ee6fb2752",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2017-08-16T02:18:03Z",
    "title_canon_sha256": "0221564d45bb8085af3efd94562bd8516d979614d700050b5b40f67a0421332e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.04748",
    "kind": "arxiv",
    "version": 1
  }
}