Pith Number

pith:RCDZPNW6

pith:2012:RCDZPNW6EQSSQ574VDDLWFJUMY

not attested not anchored not stored refs pending

A general hidden variable model for the two-qubits system

Giancarlo Ghirardi, Raffaele Romano

arxiv:1203.3091 v1 · 2012-03-14 · 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{RCDZPNW6EQSSQ574VDDLWFJUMY}

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	2026-05-18T01:58:08.887420Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

888797b6de24252877fca8c6bb1534660f58905b9904456072767212ad3e95f4

Aliases

arxiv: 1203.3091 · arxiv_version: 1203.3091v1 · doi: 10.48550/arxiv.1203.3091 · pith_short_12: RCDZPNW6EQSS · pith_short_16: RCDZPNW6EQSSQ574 · pith_short_8: RCDZPNW6

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/RCDZPNW6EQSSQ574VDDLWFJUMY \
  | 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: 888797b6de24252877fca8c6bb1534660f58905b9904456072767212ad3e95f4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f1a287a632ddbf7ab2399c5078c48a3a1c27c6cf6325120724076c77c7d3295f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-03-14T14:07:13Z",
    "title_canon_sha256": "b0830f7b23d1c14c2c02562cb9cf6289b7821e5a3c007dfe42f1a32f0d1ea87c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.3091",
    "kind": "arxiv",
    "version": 1
  }
}