Pith Number

pith:PZW4RW77

pith:2019:PZW4RW77YAQSBZYZQDGXB34X42

not attested not anchored not stored refs pending

Measuring I2P Censorship at a Global Scale

Michalis Polychronakis, Nguyen Phong Hoang, Sadie Doreen

arxiv:1907.07120 v1 · 2019-07-16 · cs.CY · cs.NI · cs.SI

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PZW4RW77YAQSBZYZQDGXB34X42}

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	2026-05-17T23:40:27.996002Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e6dc8dbffc02120e71980cd70ef97e68659c536a8a0abd049d9986fb56320d7

Aliases

arxiv: 1907.07120 · arxiv_version: 1907.07120v1 · doi: 10.48550/arxiv.1907.07120 · pith_short_12: PZW4RW77YAQS · pith_short_16: PZW4RW77YAQSBZYZ · pith_short_8: PZW4RW77

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/PZW4RW77YAQSBZYZQDGXB34X42 \
  | 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: 7e6dc8dbffc02120e71980cd70ef97e68659c536a8a0abd049d9986fb56320d7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9379683f655e7ca29ef04b6266475f52534b853e472286939f6e3085499ae8ae",
    "cross_cats_sorted": [
      "cs.NI",
      "cs.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2019-07-16T16:57:22Z",
    "title_canon_sha256": "f04f4e40fd499e3208322f1aac5aae53e38658f7a58fe645bbd7d0484dc3ab11"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.07120",
    "kind": "arxiv",
    "version": 1
  }
}