Pith Number

pith:RCFBFR5Q

pith:2013:RCFBFR5QMBZ3NVV2B2QBMMPNDW

not attested not anchored not stored refs pending

Symmetric Extension of Two-Qubit States

Bei Zeng, David Kribs, Jianxin Chen, Norbert L\"utkenhaus, Zhengfeng Ji

arxiv:1310.3530 v2 · 2013-10-13 · 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{RCFBFR5QMBZ3NVV2B2QBMMPNDW}

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	2026-05-18T02:42:08.218218Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

888a12c7b06073b6d6ba0ea01631ed1d9468b6441b422008aaa31a6f2fc1f1f5

Aliases

arxiv: 1310.3530 · arxiv_version: 1310.3530v2 · doi: 10.48550/arxiv.1310.3530 · pith_short_12: RCFBFR5QMBZ3 · pith_short_16: RCFBFR5QMBZ3NVV2 · pith_short_8: RCFBFR5Q

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/RCFBFR5QMBZ3NVV2B2QBMMPNDW \
  | 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: 888a12c7b06073b6d6ba0ea01631ed1d9468b6441b422008aaa31a6f2fc1f1f5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5ae29a8f028e8ad49f79b36ab4e3d2fa91281b7466c66e34859a4ebf4e5511d0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-10-13T23:42:44Z",
    "title_canon_sha256": "4eab4434a6dbbd48476e44e3e349f6503d0eae25a521751105628e74b3251dd8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.3530",
    "kind": "arxiv",
    "version": 2
  }
}