Pith Number

pith:QKE5WFGG

pith:2020:QKE5WFGGMMHMNLNIUF65YBSNUK

not attested not anchored not stored refs pending

A complete hierarchy for the pure state marginal problem in quantum mechanics

H. Chau Nguyen, Nikolai Wyderka, Otfried G\"uhne, Timo Simnacher, Xiao-Dong Yu

arxiv:2008.02124 v2 · 2020-08-05 · 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{QKE5WFGGMMHMNLNIUF65YBSNUK}

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.

Cited by

1 paper in Pith

Witnessing the architecture of quantum circuits

Receipt and verification

First computed	2026-07-05T02:15:58.769252Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8289db14c6630ec6ada8a17ddc064da2a756972479a1854c5ca66ac68fd632e2

Aliases

arxiv: 2008.02124 · arxiv_version: 2008.02124v2 · doi: 10.48550/arxiv.2008.02124 · pith_short_12: QKE5WFGGMMHM · pith_short_16: QKE5WFGGMMHMNLNI · pith_short_8: QKE5WFGG

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/QKE5WFGGMMHMNLNIUF65YBSNUK \
  | 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: 8289db14c6630ec6ada8a17ddc064da2a756972479a1854c5ca66ac68fd632e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "67371be64af6c8676d6f54585e27a7ab5b3dfbafe935a9f9448c676de165ba35",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2020-08-05T13:27:54Z",
    "title_canon_sha256": "db13ed09988c3131a942bafac3c338989ec9724fa9f066dbda1becb048f3d816"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2008.02124",
    "kind": "arxiv",
    "version": 2
  }
}