Pith Number

pith:HFA563CX

pith:2013:HFA563CXKBGGJBRWGPHXP5DZXH

not attested not anchored not stored refs pending

Exponential communication gap between weak and strong classical simulations of quantum communication

Alberto Montina

arxiv:1301.3452 v1 · 2013-01-15 · quant-ph · 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{HFA563CXKBGGJBRWGPHXP5DZXH}

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	2026-05-18T03:03:21.151289Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3941df6c57504c64863633cf77f479b9c16915b287fc7dadbdcec3f9543a14c4

Aliases

arxiv: 1301.3452 · arxiv_version: 1301.3452v1 · doi: 10.48550/arxiv.1301.3452 · pith_short_12: HFA563CXKBGG · pith_short_16: HFA563CXKBGGJBRW · pith_short_8: HFA563CX

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/HFA563CXKBGGJBRWGPHXP5DZXH \
  | 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: 3941df6c57504c64863633cf77f479b9c16915b287fc7dadbdcec3f9543a14c4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "15d75905b92cca8683e1a54e53ca0bba6c2bd0a5b493925ffad3a16467eacf6a",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-01-15T18:54:21Z",
    "title_canon_sha256": "e04c96fe005ba783eb98eead93c2f4512ee25911512fc916a85d657984ce39d2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.3452",
    "kind": "arxiv",
    "version": 1
  }
}