Pith Number

pith:E2OK5EFA

pith:2018:E2OK5EFA3FIGQQZNDYFUVFKAWA

not attested not anchored not stored refs pending

Mutual information of optical communication in phase conjugating Gaussian channels

Clemens Sch\"afermeier, Ulrik L. Andersen

arxiv:1801.03811 v3 · 2018-01-11 · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{E2OK5EFA3FIGQQZNDYFUVFKAWA}

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	2026-05-17T23:57:15.471368Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

269cae90a0d95068432d1e0b4a9540b03eaa31332b08932ba8ef8a1576ef6d38

Aliases

arxiv: 1801.03811 · arxiv_version: 1801.03811v3 · doi: 10.48550/arxiv.1801.03811 · pith_short_12: E2OK5EFA3FIG · pith_short_16: E2OK5EFA3FIGQQZN · pith_short_8: E2OK5EFA

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/E2OK5EFA3FIGQQZNDYFUVFKAWA \
  | 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: 269cae90a0d95068432d1e0b4a9540b03eaa31332b08932ba8ef8a1576ef6d38

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ad64595b1aa713af2842a2adb450c2e47f37d90297ae209f42ed196e766b28a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2018-01-11T15:21:18Z",
    "title_canon_sha256": "a1ec355550e2c97710eedafff2d0f8334061fc3b1a9f85431ce8a1e279b26f9e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.03811",
    "kind": "arxiv",
    "version": 3
  }
}