Pith Number

pith:KRFY5WPW

pith:2014:KRFY5WPWIRYP2GBYYKOWQD3C7C

not attested not anchored not stored refs pending

Previous Messages Provide the Key to Achieve Shannon Capacity in a Wiretap Channel

Parameswaran S, Shahid Mehraj Shah, Vinod Sharma

arxiv:1404.5945 v1 · 2014-04-23 · cs.IT · cs.CR · 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{KRFY5WPWIRYP2GBYYKOWQD3C7C}

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	2026-05-18T00:59:03.092665Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

544b8ed9f64470fd1838c29d680f62f89adec865a271a69ef2a6688ecf106137

Aliases

arxiv: 1404.5945 · arxiv_version: 1404.5945v1 · doi: 10.48550/arxiv.1404.5945 · pith_short_12: KRFY5WPWIRYP · pith_short_16: KRFY5WPWIRYP2GBY · pith_short_8: KRFY5WPW

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/KRFY5WPWIRYP2GBYYKOWQD3C7C \
  | 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: 544b8ed9f64470fd1838c29d680f62f89adec865a271a69ef2a6688ecf106137

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1cad8eb13ec26a35fbd48b489e090b560dc50f8d7072c9ef212863867e97d3d7",
    "cross_cats_sorted": [
      "cs.CR",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2014-04-23T04:54:58Z",
    "title_canon_sha256": "5094fa81e1453459b66ad2900189f19da3095f679d440544cb0a47af56711001"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.5945",
    "kind": "arxiv",
    "version": 1
  }
}