Pith Number

pith:QMBLEMPA

pith:2008:QMBLEMPAH5SGYI3G3QHFCVXC6Z

not attested not anchored not stored refs pending

Sum-Capacity of Ergodic Fading Interference and Compound Multiaccess Channels

Elza Erkip, H. Vincent Poor, Lalitha Sankar

arxiv:0804.4866 v1 · 2008-04-30 · 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{QMBLEMPAH5SGYI3G3QHFCVXC6Z}

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	2026-05-18T00:59:11.813127Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8302b231e03f646c2366dc0e5156e2f66567bbaa755d2192ed3d07f0a912c635

Aliases

arxiv: 0804.4866 · arxiv_version: 0804.4866v1 · doi: 10.48550/arxiv.0804.4866 · pith_short_12: QMBLEMPAH5SG · pith_short_16: QMBLEMPAH5SGYI3G · pith_short_8: QMBLEMPA

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/QMBLEMPAH5SGYI3G3QHFCVXC6Z \
  | 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: 8302b231e03f646c2366dc0e5156e2f66567bbaa755d2192ed3d07f0a912c635

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "805cd12e7610069fc1bb6cfadb380f8cd1e4a6843007db3316de0c2077f02731",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2008-04-30T16:51:55Z",
    "title_canon_sha256": "f03a9e8cb46bc4ef35a906f0dee75d38ca9a6b70f7f6c5059ec018df21cbb4a1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0804.4866",
    "kind": "arxiv",
    "version": 1
  }
}