Pith Number

pith:4L7QVLEI

pith:2017:4L7QVLEI4JJADKVN4HMHTLRMUS

not attested not anchored not stored refs pending

Frequency Synchronization for Uplink Massive MIMO Systems

Feifei Gao, Hai Lin, Shi Jin, Weile Zhang

arxiv:1703.04399 v1 · 2017-03-13 · 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{4L7QVLEI4JJADKVN4HMHTLRMUS}

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	2026-05-18T00:48:48.775490Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e2ff0aac88e25201aaade1d879ae2ca4b170803f736d8e5ca7ac41124fb4cf5c

Aliases

arxiv: 1703.04399 · arxiv_version: 1703.04399v1 · doi: 10.48550/arxiv.1703.04399 · pith_short_12: 4L7QVLEI4JJA · pith_short_16: 4L7QVLEI4JJADKVN · pith_short_8: 4L7QVLEI

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/4L7QVLEI4JJADKVN4HMHTLRMUS \
  | 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: e2ff0aac88e25201aaade1d879ae2ca4b170803f736d8e5ca7ac41124fb4cf5c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b11bdc480621e12b71df21160c5043011d2fd92556319d5cf7bec3d5b89ff135",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2017-03-13T14:01:21Z",
    "title_canon_sha256": "da5a8cc909a3147c0faca377017b04f3f3ef92c2d71d87e4e052a95feb0253e4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.04399",
    "kind": "arxiv",
    "version": 1
  }
}