Pith Number

pith:7HZAOBUX

pith:2017:7HZAOBUXILIMFVQDKU5FRBZY2N

not attested not anchored not stored refs pending

Detecting qubit entanglement : an alternative to the PPT test

Joseph Samuel, Kumar Shivam, Supurna Sinha

arxiv:1712.06801 v1 · 2017-12-19 · 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{7HZAOBUXILIMFVQDKU5FRBZY2N}

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	2026-05-18T00:27:40.412501Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f9f207069742d0c2d603553a588738d35aa84a5af34ba065e38d0ecca86501f7

Aliases

arxiv: 1712.06801 · arxiv_version: 1712.06801v1 · doi: 10.48550/arxiv.1712.06801 · pith_short_12: 7HZAOBUXILIM · pith_short_16: 7HZAOBUXILIMFVQD · pith_short_8: 7HZAOBUX

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/7HZAOBUXILIMFVQDKU5FRBZY2N \
  | 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: f9f207069742d0c2d603553a588738d35aa84a5af34ba065e38d0ecca86501f7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "25f53241a52ae079920e0c90cd6e3fc57d38e7f9778e1ca78d28a7a0e7ee9dab",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2017-12-19T06:38:06Z",
    "title_canon_sha256": "46670fd7dc2cb7db3c265da7833527d83a7b9001e0609576d781ec7b5325b06f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.06801",
    "kind": "arxiv",
    "version": 1
  }
}