Pith Number

pith:2ZWVHCK3

pith:2013:2ZWVHCK3BLORRCYDU2SONENXO4

not attested not anchored not stored refs pending

A review on super dense coding over covariant noisy channels

Chiara Macchiavello, Dagmar Bruss, Hermann Kampermann, Zahra Shadman

arxiv:1305.7490 v1 · 2013-05-31 · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2ZWVHCK3BLORRCYDU2SONENXO4}

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	2026-05-18T03:19:56.222041Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d66d53895b0add188b03a6a4e691b7772bf8cddffb868a412308418e5d43dd9b

Aliases

arxiv: 1305.7490 · arxiv_version: 1305.7490v1 · doi: 10.48550/arxiv.1305.7490 · pith_short_12: 2ZWVHCK3BLOR · pith_short_16: 2ZWVHCK3BLORRCYD · pith_short_8: 2ZWVHCK3

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/2ZWVHCK3BLORRCYDU2SONENXO4 \
  | 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: d66d53895b0add188b03a6a4e691b7772bf8cddffb868a412308418e5d43dd9b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "080c6af73e013c83b9e19cb5fb203dbec6a6f097fd8c28bba3cfb5eb0bf4c3ab",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-05-31T17:23:29Z",
    "title_canon_sha256": "3199ff95a975395b186bbf6532367abc7a1881a410e2ae47d8ebb6a9a493025a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.7490",
    "kind": "arxiv",
    "version": 1
  }
}