Pith Number

pith:V5M6XQ5V

pith:2009:V5M6XQ5V6NONI2ICBAFDXONWNS

not attested not anchored not stored refs pending

Bounds on the Speedup in Quantum signalling

Pablo Arrighi, Reinhard Werner, Vincent Nesme

arxiv:0910.4461 v4 · 2009-10-23 · 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{V5M6XQ5V6NONI2ICBAFDXONWNS}

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	2026-05-18T00:51:52.779259Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

af59ebc3b5f35cd46902080a3bb9b66c96706a607468336e6804c20e682b4ec6

Aliases

arxiv: 0910.4461 · arxiv_version: 0910.4461v4 · doi: 10.48550/arxiv.0910.4461 · pith_short_12: V5M6XQ5V6NON · pith_short_16: V5M6XQ5V6NONI2IC · pith_short_8: V5M6XQ5V

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/V5M6XQ5V6NONI2ICBAFDXONWNS \
  | 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: af59ebc3b5f35cd46902080a3bb9b66c96706a607468336e6804c20e682b4ec6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "66a7a4901479068664f9b7988e137465f6887a9fb72fed8cc37993931383aec9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-10-23T18:39:57Z",
    "title_canon_sha256": "633162205f83f9be3035741956590be8b2596a0f441c6a07e1f6062e52346a66"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.4461",
    "kind": "arxiv",
    "version": 4
  }
}