Pith Number

pith:H3U5YBNW

pith:2009:H3U5YBNW3XFHCUT25E6O6TWOGD

not attested not anchored not stored refs pending

On the Capacity of the Half-Duplex Diamond Channel

Abolfazl S. Motahari, Amir K. Khandani, Hossein Bagheri

arxiv:0911.1426 v1 · 2009-11-09 · 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{H3U5YBNW3XFHCUT25E6O6TWOGD}

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	2026-05-18T00:58:47.868954Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3ee9dc05b6ddca71527ae93cef4ece30ef64f81ad7983d35543033168ad7eec7

Aliases

arxiv: 0911.1426 · arxiv_version: 0911.1426v1 · doi: 10.48550/arxiv.0911.1426 · pith_short_12: H3U5YBNW3XFH · pith_short_16: H3U5YBNW3XFHCUT2 · pith_short_8: H3U5YBNW

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/H3U5YBNW3XFHCUT25E6O6TWOGD \
  | 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: 3ee9dc05b6ddca71527ae93cef4ece30ef64f81ad7983d35543033168ad7eec7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "642b67da1f4c7f61e1b365d7aa355a181e217205e44cdaa0c422ba1721437478",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2009-11-09T20:58:23Z",
    "title_canon_sha256": "ae65a168ebf9102a69ae1131b60fdee302d160a40844fbfaa044b9bfd35314a5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.1426",
    "kind": "arxiv",
    "version": 1
  }
}