Pith Number

pith:PEHFGF5K

pith:2010:PEHFGF5KWWT4TZCWMGRTRPZRDZ

not attested not anchored not stored refs pending

A New Achievable Rate Region for the Cognitive Radio Channel

Ghosheh Abed Hodtani

arxiv:1008.4157 v1 · 2010-08-24 · 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{PEHFGF5KWWT4TZCWMGRTRPZRDZ}

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	2026-05-18T04:41:53.590226Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

790e5317aab5a7c9e45661a338bf311e7eee382c59c227a494e10e679095cc7c

Aliases

arxiv: 1008.4157 · arxiv_version: 1008.4157v1 · doi: 10.48550/arxiv.1008.4157 · pith_short_12: PEHFGF5KWWT4 · pith_short_16: PEHFGF5KWWT4TZCW · pith_short_8: PEHFGF5K

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/PEHFGF5KWWT4TZCWMGRTRPZRDZ \
  | 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: 790e5317aab5a7c9e45661a338bf311e7eee382c59c227a494e10e679095cc7c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c55600bf0ac41a3812c04d301e2d98bfb66be5a59842262cea77fad85e429b2a",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2010-08-24T21:32:00Z",
    "title_canon_sha256": "7410acd8accf00beed42a9d031fd878962ac32724a7241e69becd290df36f420"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1008.4157",
    "kind": "arxiv",
    "version": 1
  }
}