Pith Number

pith:QKAZPPJY

pith:2023:QKAZPPJYTZVEL3OCPWCIYQKKOE

not attested not anchored not stored refs pending

Rectangular Rotational Invariant Estimator for General Additive Noise Matrices

Farzad Pourkamali, Nicolas Macris

arxiv:2304.12264 v1 · 2023-04-24 · 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{QKAZPPJYTZVEL3OCPWCIYQKKOE}

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.

Cited by

1 paper in Pith

Some observations on the ambivalent role of symmetries in Bayesian inference problems

Receipt and verification

First computed	2026-07-05T06:03:49.772572Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

828197bd389e6a45edc27d848c414a712f547654cc5a0b72af765a1f4a8be76f

Aliases

arxiv: 2304.12264 · arxiv_version: 2304.12264v1 · doi: 10.48550/arxiv.2304.12264 · pith_short_12: QKAZPPJYTZVE · pith_short_16: QKAZPPJYTZVEL3OC · pith_short_8: QKAZPPJY

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/QKAZPPJYTZVEL3OCPWCIYQKKOE \
  | 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: 828197bd389e6a45edc27d848c414a712f547654cc5a0b72af765a1f4a8be76f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b6de3768240846f0e4257de862a40771e8f6f81eb55d9b3feed9dddbb17da067",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2023-04-24T17:04:04Z",
    "title_canon_sha256": "8c26394e740a7c404a46940d3b3a820cb4a06cc50b2ba4fde57f32add60e9d5d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2304.12264",
    "kind": "arxiv",
    "version": 1
  }
}