Pith Number

pith:PPFVKHIW

pith:2012:PPFVKHIWJMRWCBQIGNWA2SGDFD

not attested not anchored not stored refs pending

A Novel Data-Aided Channel Estimation with Reduced Complexity for TDS-OFDM Systems

Jean-Fran\c{c}ois H\'elard (IETR), Matthieu Crussi\`ere (IETR), Ming Liu (IETR)

arxiv:1201.0686 v1 · 2012-01-03 · cs.NI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PPFVKHIWJMRWCBQIGNWA2SGDFD}

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	2026-05-18T04:05:16.930773Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7bcb551d164b23610608336c0d48c328d31b523204ae58ea6d5e7616a3e6dcd9

Aliases

arxiv: 1201.0686 · arxiv_version: 1201.0686v1 · doi: 10.48550/arxiv.1201.0686 · pith_short_12: PPFVKHIWJMRW · pith_short_16: PPFVKHIWJMRWCBQI · pith_short_8: PPFVKHIW

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/PPFVKHIWJMRWCBQIGNWA2SGDFD \
  | 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: 7bcb551d164b23610608336c0d48c328d31b523204ae58ea6d5e7616a3e6dcd9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f5caf3774df1751d0356cb002f347ed7f24535efa907b777b6675134b1b2712c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NI",
    "submitted_at": "2012-01-03T16:10:09Z",
    "title_canon_sha256": "2f1e94972423a3b861e986f63fd2b995a21abebc604d891f32bb2eeda1dbbdd4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.0686",
    "kind": "arxiv",
    "version": 1
  }
}