Pith Number

pith:7AE7Q2ZW

pith:2010:7AE7Q2ZWFDEDNE4ERPUMR6WYX7

not attested not anchored not stored refs pending

Structure of Two-qubit Symmetric Informationally Complete POVMs

Berthold-Georg Englert, Huangjun Zhu, Yong Siah Teo

arxiv:1008.1138 v1 · 2010-08-06 · 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{7AE7Q2ZWFDEDNE4ERPUMR6WYX7}

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	2026-05-18T02:46:03.465175Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f809f86b3628c83693848be8c8fad8bfd4617aed2c8dc67c744478024897afe1

Aliases

arxiv: 1008.1138 · arxiv_version: 1008.1138v1 · doi: 10.48550/arxiv.1008.1138 · pith_short_12: 7AE7Q2ZWFDED · pith_short_16: 7AE7Q2ZWFDEDNE4E · pith_short_8: 7AE7Q2ZW

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/7AE7Q2ZWFDEDNE4ERPUMR6WYX7 \
  | 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: f809f86b3628c83693848be8c8fad8bfd4617aed2c8dc67c744478024897afe1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2827685523637a10dbed736173414c8cabb5d6cc867d65eb9a9cf2fbd10359e6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2010-08-06T09:04:06Z",
    "title_canon_sha256": "1938144b452309d233dbc687b58650ee2b0433be8b07a7bfa571960b97538841"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1008.1138",
    "kind": "arxiv",
    "version": 1
  }
}