Pith Number

pith:ZGAL3W4M

pith:2013:ZGAL3W4MDMW4B44JSE7VHRWK7W

not attested not anchored not stored refs pending

Set-Membership Constrained Conjugate Gradient Beamforming Algorithms

L. Wang, R. C. de Lamare

arxiv:1302.0422 v1 · 2013-02-02 · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZGAL3W4MDMW4B44JSE7VHRWK7W}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T03:34:37.173988Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c980bddb8c1b2dc0f389913f53c6cafda2f4c35f12f32f4231c75df6b99da468

Aliases

arxiv: 1302.0422 · arxiv_version: 1302.0422v1 · doi: 10.48550/arxiv.1302.0422 · pith_short_12: ZGAL3W4MDMW4 · pith_short_16: ZGAL3W4MDMW4B44J · pith_short_8: ZGAL3W4M

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/ZGAL3W4MDMW4B44JSE7VHRWK7W \
  | 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: c980bddb8c1b2dc0f389913f53c6cafda2f4c35f12f32f4231c75df6b99da468

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "04937fcc4d1016c4cc4940927d5a9384d9476ced07000d6d73d7d9cf6010432a",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2013-02-02T20:00:16Z",
    "title_canon_sha256": "5b3ad346fe010fd1d10d50b226020f3a68e4f5d2905023fb45f7073b336c6562"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.0422",
    "kind": "arxiv",
    "version": 1
  }
}