Pith Number

pith:VJKBZVG7

pith:2012:VJKBZVG7JHWY6WQXMJ4ZM5PDEQ

not attested not anchored not stored refs pending

Carrier Frequency Offset Estimation for Two-Way Relaying: Optimal Preamble and Estimator Design

Chin Keong Ho, Patrick Ho Wang Fung, Sumei Sun

arxiv:1208.3254 v1 · 2012-08-16 · 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{VJKBZVG7JHWY6WQXMJ4ZM5PDEQ}

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	2026-05-18T03:48:36.406761Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aa541cd4df49ed8f5a1762799675e3240e858edb47a0af544f1ba52b7699a3ba

Aliases

arxiv: 1208.3254 · arxiv_version: 1208.3254v1 · doi: 10.48550/arxiv.1208.3254 · pith_short_12: VJKBZVG7JHWY · pith_short_16: VJKBZVG7JHWY6WQX · pith_short_8: VJKBZVG7

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/VJKBZVG7JHWY6WQXMJ4ZM5PDEQ \
  | 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: aa541cd4df49ed8f5a1762799675e3240e858edb47a0af544f1ba52b7699a3ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "74dfe5591f569b5cf9483509c6e30e4aa084e80733a1ca5f7bdfebf967604a75",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2012-08-16T00:25:50Z",
    "title_canon_sha256": "50c9c4f4778314ff1204e482e637f2c6e6d735f473e0893caec6b78c685fdc64"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.3254",
    "kind": "arxiv",
    "version": 1
  }
}