Pith Number

pith:NGBQT7JY

pith:2015:NGBQT7JYQATYW4UFS6FG5HCKRP

not attested not anchored not stored refs pending

Low-Complexity CFO Estimation for Multi-User Massive MIMO Systems

Saif Khan Mohammed, Sudarshan Mukherjee

arxiv:1504.05657 v2 · 2015-04-22 · 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{NGBQT7JYQATYW4UFS6FG5HCKRP}

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	2026-05-18T02:17:10.808614Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

698309fd3880278b7285978a6e9c4a8be58bce3a1228da330cbde1aae2078c56

Aliases

arxiv: 1504.05657 · arxiv_version: 1504.05657v2 · doi: 10.48550/arxiv.1504.05657 · pith_short_12: NGBQT7JYQATY · pith_short_16: NGBQT7JYQATYW4UF · pith_short_8: NGBQT7JY

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/NGBQT7JYQATYW4UFS6FG5HCKRP \
  | 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: 698309fd3880278b7285978a6e9c4a8be58bce3a1228da330cbde1aae2078c56

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "37f650613e54b70e4f8413c24591f0befeb78f7595232260ac246c8c109b95c2",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2015-04-22T05:12:11Z",
    "title_canon_sha256": "4730b0bff45753a406b29c49b44ae69267609dd0c6dffdfb7634d32e89691970"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.05657",
    "kind": "arxiv",
    "version": 2
  }
}