Pith Number

pith:WF76ERHH

pith:2019:WF76ERHHONFD6FIOO7BDALIBF4

not attested not anchored not stored refs pending

A Forensic Audit of the Tor Browser Bundle

Matt Muir, Petra Leimich, William J Buchanan

arxiv:1907.10279 v1 · 2019-07-24 · 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{WF76ERHHONFD6FIOO7BDALIBF4}

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	2026-05-17T23:39:38.402084Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b17fe244e7734a3f150e77c2302d012f2c2d4005557504b1131aac38773f9c15

Aliases

arxiv: 1907.10279 · arxiv_version: 1907.10279v1 · doi: 10.48550/arxiv.1907.10279 · pith_short_12: WF76ERHHONFD · pith_short_16: WF76ERHHONFD6FIO · pith_short_8: WF76ERHH

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/WF76ERHHONFD6FIOO7BDALIBF4 \
  | 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: b17fe244e7734a3f150e77c2302d012f2c2d4005557504b1131aac38773f9c15

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "503492966768ec268b007dc4d666c9ece24255caa299b9203dd8d01a79265a53",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2019-07-24T07:39:16Z",
    "title_canon_sha256": "e41a3a550fe8b17c6602680c88af4b4d798d77e81ab39d0afd3a38e016e3d0a1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.10279",
    "kind": "arxiv",
    "version": 1
  }
}