Pith Number

pith:6SFC4RHJ

pith:2010:6SFC4RHJ7YKA6WUXOP7EAP5ODW

not attested not anchored not stored refs pending

Detecting entanglement of states by entries of their density matrices

Jinchuan Hou, Xiaofei Qi

arxiv:1010.2078 v2 · 2010-10-11 · quant-ph · math.OA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6SFC4RHJ7YKA6WUXOP7EAP5ODW}

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	2026-05-18T04:38:57.999979Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f48a2e44e9fe140f5a9773fe403fae1d896494331361af5d54fb95efdbb04dfd

Aliases

arxiv: 1010.2078 · arxiv_version: 1010.2078v2 · doi: 10.48550/arxiv.1010.2078 · pith_short_12: 6SFC4RHJ7YKA · pith_short_16: 6SFC4RHJ7YKA6WUX · pith_short_8: 6SFC4RHJ

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/6SFC4RHJ7YKA6WUXOP7EAP5ODW \
  | 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: f48a2e44e9fe140f5a9773fe403fae1d896494331361af5d54fb95efdbb04dfd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cf2c88df0bfd6c4a55ff9e74b32dae943fbf3a9c46664b4c294fab1c02a49d86",
    "cross_cats_sorted": [
      "math.OA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2010-10-11T12:00:39Z",
    "title_canon_sha256": "ef902c3387c2be36f2bd246b7d12d664d4d7d53dde32d91da3d446b68db1a503"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1010.2078",
    "kind": "arxiv",
    "version": 2
  }
}