Pith Number

pith:SPEZQ5OF

pith:2013:SPEZQ5OFVVN5OWHOFUWKZEBJLS

not attested not anchored not stored refs pending

When Are Popescu-Rohrlich Boxes and Random Access Codes Equivalent?

Andrzej Grudka, Karol Horodecki, Marcin Paw{\l}owski, Micha{\l} Horodecki, Waldemar K{\l}obus

arxiv:1307.7904 v2 · 2013-07-30 · 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{SPEZQ5OFVVN5OWHOFUWKZEBJLS}

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	2026-05-18T01:09:50.051377Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

93c99875c5ad5bd758ee2d2cac90295cbb6228f557ed99cc7424aab35e471ed5

Aliases

arxiv: 1307.7904 · arxiv_version: 1307.7904v2 · doi: 10.48550/arxiv.1307.7904 · pith_short_12: SPEZQ5OFVVN5 · pith_short_16: SPEZQ5OFVVN5OWHO · pith_short_8: SPEZQ5OF

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/SPEZQ5OFVVN5OWHOFUWKZEBJLS \
  | 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: 93c99875c5ad5bd758ee2d2cac90295cbb6228f557ed99cc7424aab35e471ed5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b456a52c7503d1b74c56a823d78776cb43ef45dc7465e7586d22fb6ba9a0d988",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-07-30T11:03:21Z",
    "title_canon_sha256": "09874000e1f9890488ab9efd1c1e8c57cf665a98c54d38afb9923ebeca7d279f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.7904",
    "kind": "arxiv",
    "version": 2
  }
}