Pith Number

pith:QBGZJ7CP

pith:2022:QBGZJ7CPWGGYFPHCA5YZ4XPBAV

not attested not anchored not stored refs pending

Semidefinite programming lower bounds on the squashed entanglement

Hamza Fawzi, Omar Fawzi

arxiv:2203.03394 v1 · 2022-03-07 · 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{QBGZJ7CPWGGYFPHCA5YZ4XPBAV}

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.

Cited by

1 paper in Pith

Semidefinite optimization of the quantum relative entropy of channels

Receipt and verification

First computed	2026-07-05T04:02:34.138768Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

804d94fc4fb18d82bce207719e5de1055c6b02c9e6b873c57a6ccbdc8647bdd0

Aliases

arxiv: 2203.03394 · arxiv_version: 2203.03394v1 · doi: 10.48550/arxiv.2203.03394 · pith_short_12: QBGZJ7CPWGGY · pith_short_16: QBGZJ7CPWGGYFPHC · pith_short_8: QBGZJ7CP

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/QBGZJ7CPWGGYFPHCA5YZ4XPBAV \
  | 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: 804d94fc4fb18d82bce207719e5de1055c6b02c9e6b873c57a6ccbdc8647bdd0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "620adf29a90ba079198782d3d6e82ec07f46510dc915a3feac68a56c9e2d1042",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2022-03-07T13:48:00Z",
    "title_canon_sha256": "4b701c18ef5a9f021e33ed8eca5551ea83ebc20f5b8ec5f022e59f6dfcc55449"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2203.03394",
    "kind": "arxiv",
    "version": 1
  }
}