Pith Number

pith:YBVMN7IC

pith:2015:YBVMN7ICVXYYQVA3HLFBFHLVJX

not attested not anchored not stored refs pending

Artificial-Noise-Aided Physical Layer Phase Challenge-Response Authentication for Practical OFDM Transmission

Cong Ling, Xiang-Gen Xia, Xiaofu Wu, Zhen Yan

arxiv:1502.07565 v2 · 2015-02-26 · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YBVMN7ICVXYYQVA3HLFBFHLVJX}

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	2026-05-18T01:20:26.253657Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c06ac6fd02adf188541b3aca129d754dd417e62183a66aabb8457583930f3b83

Aliases

arxiv: 1502.07565 · arxiv_version: 1502.07565v2 · doi: 10.48550/arxiv.1502.07565 · pith_short_12: YBVMN7ICVXYY · pith_short_16: YBVMN7ICVXYYQVA3 · pith_short_8: YBVMN7IC

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/YBVMN7ICVXYYQVA3HLFBFHLVJX \
  | 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: c06ac6fd02adf188541b3aca129d754dd417e62183a66aabb8457583930f3b83

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "70d6d745a403d0c709b09a932c39ff9aef9394d2fc33c7b0bedbbe90e3fc7c8a",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2015-02-26T14:16:51Z",
    "title_canon_sha256": "5de412f0c0c4659c11f1e6b58d2b5bd0fdd7abfed3185f361bc1ee61789f341a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.07565",
    "kind": "arxiv",
    "version": 2
  }
}