Pith Number

pith:SQQOOQ3W

pith:2018:SQQOOQ3WGNF4AF3MVG7AL5ORFM

not attested not anchored not stored refs pending

Digital forensic investigation of two-way radio communication equipment and services

Arie Kouwen, Kim-Kwang Raymond Choo, Mark Scanlon, Nhien-An Le-Khac

arxiv:1807.08264 v1 · 2018-07-22 · cs.CR · 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{SQQOOQ3WGNF4AF3MVG7AL5ORFM}

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	2026-05-18T00:10:08.673085Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9420e74376334bc0176ca9be05f5d12b2d22f6f9bca13c6cac5d2c7ccb33917e

Aliases

arxiv: 1807.08264 · arxiv_version: 1807.08264v1 · doi: 10.48550/arxiv.1807.08264 · pith_short_12: SQQOOQ3WGNF4 · pith_short_16: SQQOOQ3WGNF4AF3M · pith_short_8: SQQOOQ3W

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/SQQOOQ3WGNF4AF3MVG7AL5ORFM \
  | 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: 9420e74376334bc0176ca9be05f5d12b2d22f6f9bca13c6cac5d2c7ccb33917e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "750fb85bddd25ab84da0257a9b0359be5301f9e496f2099be65ad268a24eb235",
    "cross_cats_sorted": [
      "cs.CY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2018-07-22T10:02:19Z",
    "title_canon_sha256": "ad6e675a9958464b20959346fa516e005441ff5fb2b7e1af63bffcf775d59b5d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.08264",
    "kind": "arxiv",
    "version": 1
  }
}