Pith Number

pith:VHOAUGQP

pith:2013:VHOAUGQP7CLWFC5XMWJP5WTA7W

not attested not anchored not stored refs pending

A Scalable Maximum Likelihood Method for Quantum State Tomography

Alexander N\"u{\ss}eler, Marcus Cramer, Martin B. Plenio, Tillmann Baumgratz

arxiv:1308.2395 v2 · 2013-08-11 · 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{VHOAUGQP7CLWFC5XMWJP5WTA7W}

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	2026-05-18T03:00:58.565886Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a9dc0a1a0ff897628bb76592feda60fd9ae5a9204717255feb8f3a274651a8a5

Aliases

arxiv: 1308.2395 · arxiv_version: 1308.2395v2 · doi: 10.48550/arxiv.1308.2395 · pith_short_12: VHOAUGQP7CLW · pith_short_16: VHOAUGQP7CLWFC5X · pith_short_8: VHOAUGQP

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/VHOAUGQP7CLWFC5XMWJP5WTA7W \
  | 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: a9dc0a1a0ff897628bb76592feda60fd9ae5a9204717255feb8f3a274651a8a5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "45d2a3542b5203be0f871407db35831b2c575868ff48451017f725c1fb119551",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-08-11T13:44:14Z",
    "title_canon_sha256": "4b800428f102df08bfddb2405aa6c162e1931aa87e067cb9afe2269f351c815b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.2395",
    "kind": "arxiv",
    "version": 2
  }
}