Pith Number

pith:RDWCWZ3K

pith:2010:RDWCWZ3KD6YJAJEV7OT7G5WUOO

not attested not anchored not stored refs pending

Classicality witness for two-qubit states

J. Maziero, R. M. Serra

arxiv:1012.3075 v4 · 2010-12-14 · 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{RDWCWZ3KD6YJAJEV7OT7G5WUOO}

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	2026-05-18T03:54:27.796085Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

88ec2b676a1fb0902495fba7f376d4739026539f1098b0873c071f953ce71646

Aliases

arxiv: 1012.3075 · arxiv_version: 1012.3075v4 · doi: 10.48550/arxiv.1012.3075 · pith_short_12: RDWCWZ3KD6YJ · pith_short_16: RDWCWZ3KD6YJAJEV · pith_short_8: RDWCWZ3K

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/RDWCWZ3KD6YJAJEV7OT7G5WUOO \
  | 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: 88ec2b676a1fb0902495fba7f376d4739026539f1098b0873c071f953ce71646

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d3eab78629a16093f9f746a332ec75f8e13a5f3ae94c45017a3e713b048e7b02",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2010-12-14T16:16:44Z",
    "title_canon_sha256": "655a3eb27b57190186cb32eb71a72531f87a71cb8d8bd0a82b42faedad6b4409"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1012.3075",
    "kind": "arxiv",
    "version": 4
  }
}