Pith Number

pith:PSDHSJXE

pith:2017:PSDHSJXEIXBR6GHVZS5PKOEXFO

not attested not anchored not stored refs pending

Separability of diagonal symmetric states: a quadratic conic optimization problem

Albert Aloy, Anna Sanpera, Jordi Tura, Maciej Lewenstein, Ruben Quesada

arxiv:1706.09423 v2 · 2017-06-28 · 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{PSDHSJXEIXBR6GHVZS5PKOEXFO}

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	2026-05-18T00:26:07.920762Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c867926e445c31f18f5ccbaf538972bbde3718596def91ed1260a232bff51e3

Aliases

arxiv: 1706.09423 · arxiv_version: 1706.09423v2 · doi: 10.48550/arxiv.1706.09423 · pith_short_12: PSDHSJXEIXBR · pith_short_16: PSDHSJXEIXBR6GHV · pith_short_8: PSDHSJXE

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/PSDHSJXEIXBR6GHVZS5PKOEXFO \
  | 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: 7c867926e445c31f18f5ccbaf538972bbde3718596def91ed1260a232bff51e3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "074fb72c287d20bb673567371d08b98600bb9f72958695558596d44fca199992",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2017-06-28T18:00:09Z",
    "title_canon_sha256": "2f9dcc9d5eff459b34c5c06d8ebe84a7895ef56881f4b8e5995d8aaf5ce34d53"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.09423",
    "kind": "arxiv",
    "version": 2
  }
}