Pith Number

pith:F7POT6T6

pith:2011:F7POT6T6FNR3BDG7RRSFZIC63Q

not attested not anchored not stored refs pending

Four Locally Indistinguishable Ququad-Ququad Orthogonal Maximally Entangled States

Mingsheng Ying, Nengkun Yu, Runyao Duan

arxiv:1107.3224 v2 · 2011-07-16 · 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{F7POT6T6FNR3BDG7RRSFZIC63Q}

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	2026-05-18T03:12:46.702851Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2fdee9fa7e2b63b08cdf8c645ca05edc09a20e08058cf41bbfd5a1f02ac92e44

Aliases

arxiv: 1107.3224 · arxiv_version: 1107.3224v2 · doi: 10.48550/arxiv.1107.3224 · pith_short_12: F7POT6T6FNR3 · pith_short_16: F7POT6T6FNR3BDG7 · pith_short_8: F7POT6T6

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/F7POT6T6FNR3BDG7RRSFZIC63Q \
  | 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: 2fdee9fa7e2b63b08cdf8c645ca05edc09a20e08058cf41bbfd5a1f02ac92e44

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "59b1faae882677226302e6f96bb847ac692eca3660314f304709d36280455363",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2011-07-16T12:13:58Z",
    "title_canon_sha256": "bfdaa4cd84d6b54d94434a0d0a032b9af95c844f3ea56b615f6a69dd1b67bae4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.3224",
    "kind": "arxiv",
    "version": 2
  }
}