Pith Number

pith:UGUY4GEU

pith:2007:UGUY4GEUH7PE5CSSP6BCC2WNF6

not attested not anchored not stored refs pending

The SLOCC invariant and the residual entanglement for n-qubits

D. Li, H. Huang, X. Li

arxiv:0704.2087 v2 · 2007-04-17 · 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{UGUY4GEUH7PE5CSSP6BCC2WNF6}

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	2026-05-18T03:56:24.723079Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a1a98e18943fde4e8a527f82216acd2f9316d0cbff2736b575f00b5ab3035f85

Aliases

arxiv: 0704.2087 · arxiv_version: 0704.2087v2 · doi: 10.48550/arxiv.0704.2087 · pith_short_12: UGUY4GEUH7PE · pith_short_16: UGUY4GEUH7PE5CSS · pith_short_8: UGUY4GEU

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/UGUY4GEUH7PE5CSSP6BCC2WNF6 \
  | 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: a1a98e18943fde4e8a527f82216acd2f9316d0cbff2736b575f00b5ab3035f85

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c115326976e8140459c4b336711705b94ee444b07215226866f7b08640a96c99",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2007-04-17T02:02:12Z",
    "title_canon_sha256": "c9c113e62813223773809d7b9dc1404593313108274057bda01ad78c6d5a01b7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0704.2087",
    "kind": "arxiv",
    "version": 2
  }
}