pith. sign in
Pith Number

pith:23FCQQ5E

pith:2009:23FCQQ5E5W2RDVIAHIGM5APTDW
not attested not anchored not stored refs pending

K-user Interference Channels: Achievable Secrecy Rate and Degrees of Freedom

Aylin Yener, Xiang He

arxiv:0905.2643 v1 · 2009-05-16 · cs.IT · math.IT

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{23FCQQ5E5W2RDVIAHIGM5APTDW}

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 2026-05-18T00:58:48.110225Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

d6ca2843a4edb511d5003a0cce81f31daea279cf544d82c75925429b14a54adf

Aliases

arxiv: 0905.2643 · arxiv_version: 0905.2643v1 · doi: 10.48550/arxiv.0905.2643 · pith_short_12: 23FCQQ5E5W2R · pith_short_16: 23FCQQ5E5W2RDVIA · pith_short_8: 23FCQQ5E
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/23FCQQ5E5W2RDVIAHIGM5APTDW \
  | 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: d6ca2843a4edb511d5003a0cce81f31daea279cf544d82c75925429b14a54adf
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "c4f17b9b629d29778f9d9aa244d375ddb5476850cfe141bcc71bcb8413be5b7d",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2009-05-16T01:04:27Z",
    "title_canon_sha256": "440dc71cb972e5163c06df8d05e145ae1284741391e7215339d7ab09ecc27551"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.2643",
    "kind": "arxiv",
    "version": 1
  }
}