Pith Number

pith:LSOBOAG6

pith:2009:LSOBOAG6IAQWKKPWI42WC3U6WV

not attested not anchored not stored refs pending

Using the Physical Layer for Wireless Authentication in Time-Variant Channels

Larry Greenstein, Liang Xiao, Narayan Mandayam, Wade Trappe

arxiv:0907.4919 v1 · 2009-07-28 · 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{LSOBOAG6IAQWKKPWI42WC3U6WV}

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	2026-05-18T00:57:58.081092Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5c9c1700de40216529f64735616e9eb5608b6ccf57bc71cbb6baaa6e4fc0dc03

Aliases

arxiv: 0907.4919 · arxiv_version: 0907.4919v1 · doi: 10.48550/arxiv.0907.4919 · pith_short_12: LSOBOAG6IAQW · pith_short_16: LSOBOAG6IAQWKKPW · pith_short_8: LSOBOAG6

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/LSOBOAG6IAQWKKPWI42WC3U6WV \
  | 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: 5c9c1700de40216529f64735616e9eb5608b6ccf57bc71cbb6baaa6e4fc0dc03

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0beecf6abf7c256906012d2583f223c87061bffd458515cb71322db014ab6a8b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2009-07-28T13:56:58Z",
    "title_canon_sha256": "9d5e59536732f0d5f914de15c63f3f095cd875b58abe69b8a78a551b13b1fb10"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.4919",
    "kind": "arxiv",
    "version": 1
  }
}