Pith Number

pith:VJXJZZFE

pith:2004:VJXJZZFE7ZUEFXOIGEK2FYVDYF

not attested not anchored not stored refs pending

Performance of DPSK Signals with Quadratic Phase Noise

Keang-Po Ho

arxiv:physics/0404058 v1 · 2004-04-12 · physics.optics · physics.data-an

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VJXJZZFE7ZUEFXOIGEK2FYVDYF}

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	2026-05-18T03:36:27.297462Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aa6e9ce4a4fe6842ddc83115a2e2a3c1669d55961406da397beaed55acc9bc72

Aliases

arxiv: physics/0404058 · arxiv_version: physics/0404058v1 · doi: 10.48550/arxiv.physics/0404058 · pith_short_12: VJXJZZFE7ZUE · pith_short_16: VJXJZZFE7ZUEFXOI · pith_short_8: VJXJZZFE

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/VJXJZZFE7ZUEFXOIGEK2FYVDYF \
  | 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: aa6e9ce4a4fe6842ddc83115a2e2a3c1669d55961406da397beaed55acc9bc72

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b36d886747eee5b0ffaa8450eb3099255209082481f48ad882d2783f34dafac0",
    "cross_cats_sorted": [
      "physics.data-an"
    ],
    "license": "",
    "primary_cat": "physics.optics",
    "submitted_at": "2004-04-12T05:00:02Z",
    "title_canon_sha256": "fdb9d8f9d1b881db857185c40f727e6baad45c2381ed6ac44b0b8687f3a2d02e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/0404058",
    "kind": "arxiv",
    "version": 1
  }
}