Pith Number

pith:FQUBUCZH

pith:2022:FQUBUCZHOQT6OVYQSVOA2FPTVH

not attested not anchored not stored refs pending

Bounding entanglement dimensionality from the covariance matrix

Giuseppe Vitagliano, Marcus Huber, Matteo Fadel, Qiongyi He, Shuheng Liu

arxiv:2208.04909 v5 · 2022-08-09 · 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{FQUBUCZHOQT6OVYQSVOA2FPTVH}

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	2026-07-05T07:39:06.749395Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c281a0b277427e75710955c0d15f3a9c46448f78767f38086b13b4d0d63de64

Aliases

arxiv: 2208.04909 · arxiv_version: 2208.04909v5 · doi: 10.48550/arxiv.2208.04909 · pith_short_12: FQUBUCZHOQT6 · pith_short_16: FQUBUCZHOQT6OVYQ · pith_short_8: FQUBUCZH

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/FQUBUCZHOQT6OVYQSVOA2FPTVH \
  | 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: 2c281a0b277427e75710955c0d15f3a9c46448f78767f38086b13b4d0d63de64

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4783052c21f42824cbf734316c1398e63cd4c3ec60c0a16d9865b2b8dbaa4f99",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2022-08-09T17:11:44Z",
    "title_canon_sha256": "2898211b94cff74f886f24fc2bc8f8c44ba4c1f3edd75dd7b19a439f30cd3c6b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2208.04909",
    "kind": "arxiv",
    "version": 5
  }
}