Pith Number

pith:TAAKCK6S

pith:2007:TAAKCK6SHLEAFBJ4UJUC7VT6GQ

not attested not anchored not stored refs pending

Low SNR Capacity of Noncoherent Fading Channels

Amos Lapidoth, Bruce Hajek, Ligong Wang, Vignesh Sethuraman

arxiv:0712.2872 v2 · 2007-12-18 · 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{TAAKCK6SHLEAFBJ4UJUC7VT6GQ}

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	2026-05-18T00:58:25.812523Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9800a12bd23ac802853ca2682fd67e34326f8e0e545a10df4b16e9b084543ea3

Aliases

arxiv: 0712.2872 · arxiv_version: 0712.2872v2 · doi: 10.48550/arxiv.0712.2872 · pith_short_12: TAAKCK6SHLEA · pith_short_16: TAAKCK6SHLEAFBJ4 · pith_short_8: TAAKCK6S

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/TAAKCK6SHLEAFBJ4UJUC7VT6GQ \
  | 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: 9800a12bd23ac802853ca2682fd67e34326f8e0e545a10df4b16e9b084543ea3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "109b3f990e72331b262388ca300619151cbe9d942f4c026bd79b8bdce8cd30e0",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2007-12-18T04:28:36Z",
    "title_canon_sha256": "8f82e0054013534198cd7d1f80779b53778581a011783772140dfdaf47713b4a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0712.2872",
    "kind": "arxiv",
    "version": 2
  }
}