Pith Number

pith:QS6UV4DO

pith:2013:QS6UV4DOA3KLNDKZ2HHXILCL7E

not attested not anchored not stored refs pending

Cognitive Radios: A Survey of Methods for Channel State Prediction

Ashish Kumar, Lakshay Narula, S. P. Singh

arxiv:1311.2869 v1 · 2013-11-12 · cs.NI

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QS6UV4DOA3KLNDKZ2HHXILCL7E}

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	2026-05-18T03:07:21.685401Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

84bd4af06e06d4b68d59d1cf742c4bf902e3d78f56cd32417a8ff5b306526bff

Aliases

arxiv: 1311.2869 · arxiv_version: 1311.2869v1 · doi: 10.48550/arxiv.1311.2869 · pith_short_12: QS6UV4DOA3KL · pith_short_16: QS6UV4DOA3KLNDKZ · pith_short_8: QS6UV4DO

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/QS6UV4DOA3KLNDKZ2HHXILCL7E \
  | 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: 84bd4af06e06d4b68d59d1cf742c4bf902e3d78f56cd32417a8ff5b306526bff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd2836b7d4ca5a16530e5ede39ff88be9669ff3168f671f18737aa94d1fc36ee",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NI",
    "submitted_at": "2013-11-12T18:28:09Z",
    "title_canon_sha256": "c628c214a56e9341bca8a314089bf0d6fb914da0aedd7790e69e11fa152332e9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.2869",
    "kind": "arxiv",
    "version": 1
  }
}