Pith Number

pith:TKFWT6UY

pith:2010:TKFWT6UYWST5OTVLYAUTC5YF66

not attested not anchored not stored refs pending

The criterion for maximally entangled four-qubit state

Feng Feng, Hai-Yang Song, Xin-Wei Zha

arxiv:1012.0371 v1 · 2010-12-02 · 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{TKFWT6UYWST5OTVLYAUTC5YF66}

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	2026-05-18T02:04:36.142853Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9a8b69fa98b4a7d74eabc029317705f789a7910015f09733c12f53989f02e2bb

Aliases

arxiv: 1012.0371 · arxiv_version: 1012.0371v1 · doi: 10.48550/arxiv.1012.0371 · pith_short_12: TKFWT6UYWST5 · pith_short_16: TKFWT6UYWST5OTVL · pith_short_8: TKFWT6UY

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/TKFWT6UYWST5OTVLYAUTC5YF66 \
  | 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: 9a8b69fa98b4a7d74eabc029317705f789a7910015f09733c12f53989f02e2bb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f778c55113499ed73ae635523e4ada1266fcd3840a1ac518d47a8bc2ebcd66f7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2010-12-02T02:42:03Z",
    "title_canon_sha256": "b1010c4a56b08acb80f577a7c9402a7366ef895b69f234c6652db797620d2cb5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1012.0371",
    "kind": "arxiv",
    "version": 1
  }
}