Pith Number

pith:2W63NOVB

pith:2008:2W63NOVBIPUXILJGF7IWI7LWW4

not attested not anchored not stored refs pending

Generalized Degrees of Freedom of the Symmetric Gaussian $K$ User Interference Channel

Sriram Vishwanath, Syed A. Jafar

arxiv:0804.4489 v1 · 2008-04-28 · 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{2W63NOVBIPUXILJGF7IWI7LWW4}

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	2026-05-18T03:58:51.978019Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d5bdb6baa143e9742d262fd1647d76b70d5b3dd95545f8a647f2a151117fbf5a

Aliases

arxiv: 0804.4489 · arxiv_version: 0804.4489v1 · doi: 10.48550/arxiv.0804.4489 · pith_short_12: 2W63NOVBIPUX · pith_short_16: 2W63NOVBIPUXILJG · pith_short_8: 2W63NOVB

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/2W63NOVBIPUXILJGF7IWI7LWW4 \
  | 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: d5bdb6baa143e9742d262fd1647d76b70d5b3dd95545f8a647f2a151117fbf5a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2635d5bb24450e56cc1ccd23b8bd3eed9370049c5a219c076e0eaffa24701b2a",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2008-04-28T21:07:15Z",
    "title_canon_sha256": "44de0af3d2bf5e528dc8ee8c622308eed4a9b55dc5dac5a0a3d4969eff634414"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0804.4489",
    "kind": "arxiv",
    "version": 1
  }
}