Pith Number

pith:5AEPOD2Q

pith:2013:5AEPOD2QEWIOHY7AVVZLDI7AGU

not attested not anchored not stored refs pending

Closed-Loop Beam Alignment for Massive MIMO Channel Estimation

Andrew J. Duly, David J. Love, James V. Krogmeier, Taejoon Kim

arxiv:1308.2747 v2 · 2013-08-13 · 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{5AEPOD2QEWIOHY7AVVZLDI7AGU}

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	2026-05-18T02:54:56.201460Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e808f70f502590e3e3e0ad72b1a3e03529274eeafbbf89a68cb43bed26a1aa2b

Aliases

arxiv: 1308.2747 · arxiv_version: 1308.2747v2 · doi: 10.48550/arxiv.1308.2747 · pith_short_12: 5AEPOD2QEWIO · pith_short_16: 5AEPOD2QEWIOHY7A · pith_short_8: 5AEPOD2Q

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/5AEPOD2QEWIOHY7AVVZLDI7AGU \
  | 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: e808f70f502590e3e3e0ad72b1a3e03529274eeafbbf89a68cb43bed26a1aa2b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9c69f4d9106aad9f8ce8342ea34465588d156f47435996c77294afe9bdccf95a",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2013-08-13T04:03:04Z",
    "title_canon_sha256": "95a5ffc4e580f7787674d19a91903aa7174b157c45e238a9f5af6fd9af295a91"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.2747",
    "kind": "arxiv",
    "version": 2
  }
}