Pith Number

pith:YFJ434GK

pith:2015:YFJ434GKE2TSFIGAIJLHNOUQCL

not attested not anchored not stored refs pending

Optimal quantum-state tomography with known parameters

D\'enes Petz, L\'aszl\'o Ruppert

arxiv:1511.06666 v1 · 2015-11-20 · 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{YFJ434GKE2TSFIGAIJLHNOUQCL}

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	2026-05-18T01:26:24.108336Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c153cdf0ca26a722a0c0425676ba9012e5745c9cc1b50a0ecad21efcf50ccc9c

Aliases

arxiv: 1511.06666 · arxiv_version: 1511.06666v1 · doi: 10.48550/arxiv.1511.06666 · pith_short_12: YFJ434GKE2TS · pith_short_16: YFJ434GKE2TSFIGA · pith_short_8: YFJ434GK

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/YFJ434GKE2TSFIGAIJLHNOUQCL \
  | 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: c153cdf0ca26a722a0c0425676ba9012e5745c9cc1b50a0ecad21efcf50ccc9c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d920a932327e659a8589a364f7d646a65373db946c94d0eb733cac071fa5c52c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-11-20T16:20:50Z",
    "title_canon_sha256": "7a6a3c157ca981c360f33cda2f968c09337f4275a96d915c4b58a2a52c0ffb56"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.06666",
    "kind": "arxiv",
    "version": 1
  }
}