Pith Number

pith:QPEZ7SH4

pith:2017:QPEZ7SH42PDLZ5AWSDBZKZYLLC

not attested not anchored not stored refs pending

On Low Complexity Detection for QAM Isomorphic Constellations

Farbod Kayhan

arxiv:1704.05334 v1 · 2017-04-18 · 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{QPEZ7SH42PDLZ5AWSDBZKZYLLC}

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	2026-05-18T00:46:11.287464Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83c99fc8fcd3c6bcf41690c395670b589e9f4775cc0d3e383f30cc6375ef4ef9

Aliases

arxiv: 1704.05334 · arxiv_version: 1704.05334v1 · doi: 10.48550/arxiv.1704.05334 · pith_short_12: QPEZ7SH42PDL · pith_short_16: QPEZ7SH42PDLZ5AW · pith_short_8: QPEZ7SH4

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/QPEZ7SH42PDLZ5AWSDBZKZYLLC \
  | 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: 83c99fc8fcd3c6bcf41690c395670b589e9f4775cc0d3e383f30cc6375ef4ef9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "03d338903b5ea6f6b671258227d35ef2375c00a6095133a29dc01726dbec88ab",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2017-04-18T13:30:47Z",
    "title_canon_sha256": "29d8016a184b38b6543585be4b3325f2551fdcddfccfa8dfe2736f2f208f9fd6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.05334",
    "kind": "arxiv",
    "version": 1
  }
}