Pith Number

pith:Q7EZIKBP

pith:2011:Q7EZIKBPMPY5SJ27EMFZOC6SPR

not attested not anchored not stored refs pending

Prescient Precoding in Heterogeneous DSA Networks with Both Underlay and Interweave MIMO Cognitive Radios

A. Lee Swindlehurst, Amitav Mukherjee

arxiv:1107.3995 v2 · 2011-07-20 · 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{Q7EZIKBPMPY5SJ27EMFZOC6SPR}

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	2026-05-18T03:54:06.133216Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

87c994282f63f1d9275f230b970bd27c6b07786e8718405a27921b2941cd7669

Aliases

arxiv: 1107.3995 · arxiv_version: 1107.3995v2 · doi: 10.48550/arxiv.1107.3995 · pith_short_12: Q7EZIKBPMPY5 · pith_short_16: Q7EZIKBPMPY5SJ27 · pith_short_8: Q7EZIKBP

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/Q7EZIKBPMPY5SJ27EMFZOC6SPR \
  | 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: 87c994282f63f1d9275f230b970bd27c6b07786e8718405a27921b2941cd7669

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1305710376ca9484ca9f991d230347b97fff848dabd29ff8dfcb4832f0c03f2d",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2011-07-20T15:03:13Z",
    "title_canon_sha256": "7aa3e4bf45824f49ad6b631f4a58c3223789a75d0aa7d7a3f71539258463414b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.3995",
    "kind": "arxiv",
    "version": 2
  }
}