Pith Number

pith:E4Y3VZ3S

pith:2018:E4Y3VZ3S42I36C2VLOFQQDJJDV

not attested not anchored not stored refs pending

Inferring Remote Channel State Information: Cram\'er-Rao Lower Bound and Deep Learning Implementation

Andreas F. Molisch, Sheng Chen, Sheng Zhou, Zhisheng Niu, Zhiyuan Jiang, Ziyan He

arxiv:1812.01223 v1 · 2018-12-04 · cs.IT · cs.LG · 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{E4Y3VZ3S42I36C2VLOFQQDJJDV}

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	2026-05-17T23:59:13.067073Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2731bae772e691bf0b555b8b080d291d432f3a032e9f70e56d6beb99923d3262

Aliases

arxiv: 1812.01223 · arxiv_version: 1812.01223v1 · doi: 10.48550/arxiv.1812.01223 · pith_short_12: E4Y3VZ3S42I3 · pith_short_16: E4Y3VZ3S42I36C2V · pith_short_8: E4Y3VZ3S

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/E4Y3VZ3S42I36C2VLOFQQDJJDV \
  | 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: 2731bae772e691bf0b555b8b080d291d432f3a032e9f70e56d6beb99923d3262

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5f9d6cf4ee1883ebb4afa5e1bcbef44671eebea82fbedf35af490b94af1641a3",
    "cross_cats_sorted": [
      "cs.LG",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2018-12-04T05:28:31Z",
    "title_canon_sha256": "5a617e330f6c9391807c7395764be85b2e37a9a1b2080afc896f4572e8e292f0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.01223",
    "kind": "arxiv",
    "version": 1
  }
}