Pith Number

pith:IRB5SHQF

pith:2019:IRB5SHQFJ4MRK6657H6OOO65MT

not attested not anchored not stored refs pending

ICLab: A Global, Longitudinal Internet Censorship Measurement Platform

Abbas Razaghpanah, Arian Akhavan Niaki, Nguyen Phong Hoang, Nicolas Christin, Phillipa Gill, Shinyoung Cho, Zachary Weinberg

arxiv:1907.04245 v2 · 2019-07-09 · cs.CR · 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{IRB5SHQFJ4MRK6657H6OOO65MT}

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	2026-05-17T23:41:00.341801Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4443d91e054f19157bddf9fce73bdd64faf894bf90451bae809d2a1d9dc79f87

Aliases

arxiv: 1907.04245 · arxiv_version: 1907.04245v2 · doi: 10.48550/arxiv.1907.04245 · pith_short_12: IRB5SHQFJ4MR · pith_short_16: IRB5SHQFJ4MRK665 · pith_short_8: IRB5SHQF

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/IRB5SHQFJ4MRK6657H6OOO65MT \
  | 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: 4443d91e054f19157bddf9fce73bdd64faf894bf90451bae809d2a1d9dc79f87

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c7243a50d3af4e15a2634afae61abe62af4df261f5a70922f329dd47bec615a0",
    "cross_cats_sorted": [
      "cs.CY",
      "cs.NI",
      "cs.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2019-07-09T15:27:42Z",
    "title_canon_sha256": "bd7c38006571625d3acec4bde0229452f774ab7c425fb988e7c64a9a7270e93e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.04245",
    "kind": "arxiv",
    "version": 2
  }
}