Pith Number

pith:PIBHBCGB

pith:2018:PIBHBCGBDSIVG7UMYYIZGNJ6Q3

not attested not anchored not stored refs pending

Adaptive Bit Allocation for OFDM Cognitive Radio Systems with Imperfect Channel Estimation

Ebrahim Bedeer, Kareem Baddour, Mohamed Marey, Octavia Dobre

arxiv:1801.04010 v2 · 2018-01-11 · 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{PIBHBCGBDSIVG7UMYYIZGNJ6Q3}

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	2026-05-17T23:54:28.338988Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7a027088c11c91537e8cc61193353e86eaee1e04bc8c879c3346987875cf0e1b

Aliases

arxiv: 1801.04010 · arxiv_version: 1801.04010v2 · doi: 10.48550/arxiv.1801.04010 · pith_short_12: PIBHBCGBDSIV · pith_short_16: PIBHBCGBDSIVG7UM · pith_short_8: PIBHBCGB

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/PIBHBCGBDSIVG7UMYYIZGNJ6Q3 \
  | 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: 7a027088c11c91537e8cc61193353e86eaee1e04bc8c879c3346987875cf0e1b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0387332421c689f8b8f22d9447d65a29e9b98743e59e5a5c2d8b9a68cc04d0db",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2018-01-11T22:57:36Z",
    "title_canon_sha256": "64746f5540b122815b9dafd68c37c0260cd20cce520713876be6c87925668aeb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.04010",
    "kind": "arxiv",
    "version": 2
  }
}