Pith Number

pith:FNQNJGRR

pith:2016:FNQNJGRRJPWXY42WSMJB53NKXW

not attested not anchored not stored refs pending

An explicit formula for the polynomial entanglement measures of degree 2 of even-N qubits mixed states

A.Heshmati, A. Mohamadzadeh, F. Eghbalifam, M.A. Jafarizadeh, M. Yahyavi, N.Karimi, S. Nami

arxiv:1611.07958 v2 · 2016-11-23 · 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{FNQNJGRRJPWXY42WSMJB53NKXW}

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	2026-05-18T00:56:18.886686Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2b60d49a314bed7c735693121eedaabd96dda413fa5e41c66ecb650bfe64a13e

Aliases

arxiv: 1611.07958 · arxiv_version: 1611.07958v2 · doi: 10.48550/arxiv.1611.07958 · pith_short_12: FNQNJGRRJPWX · pith_short_16: FNQNJGRRJPWXY42W · pith_short_8: FNQNJGRR

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/FNQNJGRRJPWXY42WSMJB53NKXW \
  | 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: 2b60d49a314bed7c735693121eedaabd96dda413fa5e41c66ecb650bfe64a13e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f1958764113729af526f4e41eeab2d56adb60cfe720d071437d7d1cc85ba8591",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2016-11-23T20:00:42Z",
    "title_canon_sha256": "a94aedd048249857e774691337b382930d3100334c666ff8c327602152b7a328"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1611.07958",
    "kind": "arxiv",
    "version": 2
  }
}