Pith Number

pith:QXWY2CDV

pith:2013:QXWY2CDVXHDRCINNJ2PVS2UI7V

not attested not anchored not stored refs pending

Energy Efficient Coordinated Beamforming for Multi-cell MISO Systems

Jie Xu, Ling Qiu, Yi Huang

arxiv:1307.2421 v1 · 2013-07-09 · 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{QXWY2CDVXHDRCINNJ2PVS2UI7V}

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	2026-05-18T00:57:56.311420Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

85ed8d0875b9c71121ad4e9f596a88fd6a71dac09117e9ddeebc14206a3499b3

Aliases

arxiv: 1307.2421 · arxiv_version: 1307.2421v1 · doi: 10.48550/arxiv.1307.2421 · pith_short_12: QXWY2CDVXHDR · pith_short_16: QXWY2CDVXHDRCINN · pith_short_8: QXWY2CDV

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/QXWY2CDVXHDRCINNJ2PVS2UI7V \
  | 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: 85ed8d0875b9c71121ad4e9f596a88fd6a71dac09117e9ddeebc14206a3499b3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fa9d6190b953e2f1f60483954fea51663bf6a59fca625e1f0403274fbd40d6be",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2013-07-09T12:30:58Z",
    "title_canon_sha256": "e94ed0f015941fe6158b7cd393add37ac6952d0d111afbb2d0c994116c869688"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.2421",
    "kind": "arxiv",
    "version": 1
  }
}