Pith Number

pith:B4SJIM5Z

pith:2015:B4SJIM5ZJM32JGXYLTIHIBEG5U

not attested not anchored not stored refs pending

A New Covert Channel over Cellular Voice Channel in Smartphones

Bill Stackpole, Bushra Aloraini, Daryl Johnson, Sumita Mishra

arxiv:1504.05647 v2 · 2015-04-22 · 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{B4SJIM5ZJM32JGXYLTIHIBEG5U}

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	2026-05-18T01:37:44.287555Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0f249433b94b37a49af85cd0740486ed0200106ae2ca445a4b716894f4b5f73b

Aliases

arxiv: 1504.05647 · arxiv_version: 1504.05647v2 · doi: 10.48550/arxiv.1504.05647 · pith_short_12: B4SJIM5ZJM32 · pith_short_16: B4SJIM5ZJM32JGXY · pith_short_8: B4SJIM5Z

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/B4SJIM5ZJM32JGXYLTIHIBEG5U \
  | 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: 0f249433b94b37a49af85cd0740486ed0200106ae2ca445a4b716894f4b5f73b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1019d793fde03a1c3f534cbb14a71898e7674bde263499a11b0c7821b3623944",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2015-04-22T03:49:23Z",
    "title_canon_sha256": "e59262687205b457bd93c4c829f2aa9c16f93312d83cbe9a0abc2e18f469e835"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.05647",
    "kind": "arxiv",
    "version": 2
  }
}