Pith Number

pith:7MMM5OIP

pith:2010:7MMM5OIPWKSTN7EM5VAR7M6UWB

not attested not anchored not stored refs pending

Variational quantum tomography with incomplete information by means of semidefinite programs

Andr\'e T. Ces\'ario, Reinaldo O. Vianna, Thiago O. Maciel

arxiv:1001.1793 v5 · 2010-01-12 · 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{7MMM5OIPWKSTN7EM5VAR7M6UWB}

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	2026-05-18T04:07:20.010225Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fb18ceb90fb2a536fc8ced411fb3d4b07a3a19aa196797ebc0570a923fc00030

Aliases

arxiv: 1001.1793 · arxiv_version: 1001.1793v5 · doi: 10.48550/arxiv.1001.1793 · pith_short_12: 7MMM5OIPWKST · pith_short_16: 7MMM5OIPWKSTN7EM · pith_short_8: 7MMM5OIP

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/7MMM5OIPWKSTN7EM5VAR7M6UWB \
  | 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: fb18ceb90fb2a536fc8ced411fb3d4b07a3a19aa196797ebc0570a923fc00030

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a4cc0445dbb785bd7bda2b22eba9a074a31fae0dfeb80d9fcd455b7b6380834b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2010-01-12T05:00:30Z",
    "title_canon_sha256": "aa399812bef8e31d7fcad238666284046644deaa7779c09a83a30c422a2c89bc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1001.1793",
    "kind": "arxiv",
    "version": 5
  }
}