Pith Number

pith:MUATSD67

pith:2019:MUATSD67NWYWPHSJKJZFLQCPUW

not attested not anchored not stored refs pending

Hermitian tensor and quantum mixed state

Guyan Ni

arxiv:1902.02640 v4 · 2019-02-05 · quant-ph · math-ph · math.MP · math.RA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MUATSD67NWYWPHSJKJZFLQCPUW}

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	2026-07-04T23:59:22.250218Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6501390fdf6db1679e49527255c04fa5963c36f2045283ced6d511d4df872251

Aliases

arxiv: 1902.02640 · arxiv_version: 1902.02640v4 · doi: 10.48550/arxiv.1902.02640 · pith_short_12: MUATSD67NWYW · pith_short_16: MUATSD67NWYWPHSJ · pith_short_8: MUATSD67

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/MUATSD67NWYWPHSJKJZFLQCPUW \
  | 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: 6501390fdf6db1679e49527255c04fa5963c36f2045283ced6d511d4df872251

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "99f2a8d841380407458e76a82f94f35108981e216310b84c4e37acf962e45850",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP",
      "math.RA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2019-02-05T10:29:35Z",
    "title_canon_sha256": "3c23056886530dbbbee75aaaf10eaafa3c77c170bd89c2f7ee47cd0a5af528da"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.02640",
    "kind": "arxiv",
    "version": 4
  }
}