Pith Number

pith:XPVKOEUT

pith:2021:XPVKOEUTJ7DDSIWXMULG6FBSDE

not attested not anchored not stored refs pending

Information Bottleneck for a Rayleigh Fading MIMO Channel with an Oblivious Relay

Giuseppe Caire, Hao Xu, Shlomo Shamai (Shitz), Tianyu Yang

arxiv:2102.10675 v2 · 2021-02-21 · 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{XPVKOEUTJ7DDSIWXMULG6FBSDE}

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	2026-07-05T02:38:17.812980Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bbeaa712934fc63922d765166f14321908fa2112d85ee1512b363d10b4fc0b3c

Aliases

arxiv: 2102.10675 · arxiv_version: 2102.10675v2 · doi: 10.48550/arxiv.2102.10675 · pith_short_12: XPVKOEUTJ7DD · pith_short_16: XPVKOEUTJ7DDSIWX · pith_short_8: XPVKOEUT

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/XPVKOEUTJ7DDSIWXMULG6FBSDE \
  | 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: bbeaa712934fc63922d765166f14321908fa2112d85ee1512b363d10b4fc0b3c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1df27c8796eaf54c9f6baec9f887811daa2e9af4542aaeadbc0737eeaa3e2e83",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2021-02-21T20:26:31Z",
    "title_canon_sha256": "21f995f485c3f5a39b787ba040d6f6602c95753ee65348eff0dca28797136679"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.10675",
    "kind": "arxiv",
    "version": 2
  }
}