Pith Number

pith:22F2DHPG

pith:2018:22F2DHPGTX7KN5UOZZWLSPS77S

not attested not anchored not stored refs pending

Automated Discovery of Internet Censorship by Web Crawling

Alexander Darer, Joss Wright, Oliver Farnan

arxiv:1804.03056 v2 · 2018-04-09 · cs.CY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{22F2DHPGTX7KN5UOZZWLSPS77S}

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.

Cited by

1 paper in Pith

Analysing Censorship Circumvention with VPNs via DNS Cache Snooping

Receipt and verification

First computed	2026-05-18T00:18:03.648785Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d68ba19de69dfea6f68ece6cb93e5ffcb80d5220b5ef0b8aa55b576ca38a7f57

Aliases

arxiv: 1804.03056 · arxiv_version: 1804.03056v2 · doi: 10.48550/arxiv.1804.03056 · pith_short_12: 22F2DHPGTX7K · pith_short_16: 22F2DHPGTX7KN5UO · pith_short_8: 22F2DHPG

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/22F2DHPGTX7KN5UOZZWLSPS77S \
  | 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: d68ba19de69dfea6f68ece6cb93e5ffcb80d5220b5ef0b8aa55b576ca38a7f57

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6d98c829297cec8d16456004b773070c6008b132c77376d8219559e511c24911",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2018-04-09T15:24:43Z",
    "title_canon_sha256": "978c7a95f7d2f77abcd21ee583f1b6a04cb1d619e9fa35e811fe16142237c9a8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.03056",
    "kind": "arxiv",
    "version": 2
  }
}