Pith Number

pith:A7WIPDW3

pith:2022:A7WIPDW3GCJR2TW275MPQKBTPM

not attested not anchored not stored refs pending

A new method for directly computing reduced density matrices

Christian K\"ading, Mario Pitschmann

arxiv:2204.08829 v4 · 2022-04-19 · hep-th · hep-ph · 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{A7WIPDW3GCJR2TW275MPQKBTPM}

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

2 papers in Pith

Gauging Open EFTs from the top down

Directly computing Wigner functions for open quantum systems

Receipt and verification

First computed	2026-07-05T06:18:58.956902Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

07ec878edb30931d4edaff58f828337b0d29735bf6ed9e225800e3e5d51862ed

Aliases

arxiv: 2204.08829 · arxiv_version: 2204.08829v4 · doi: 10.48550/arxiv.2204.08829 · pith_short_12: A7WIPDW3GCJR · pith_short_16: A7WIPDW3GCJR2TW2 · pith_short_8: A7WIPDW3

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/A7WIPDW3GCJR2TW275MPQKBTPM \
  | 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: 07ec878edb30931d4edaff58f828337b0d29735bf6ed9e225800e3e5d51862ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "040458054e6b263b35820d779b3218d3018a45b9971be79a696eade3d98e6e1c",
    "cross_cats_sorted": [
      "hep-ph",
      "quant-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2022-04-19T11:58:36Z",
    "title_canon_sha256": "317ac4526c1c4fac028ac70b58800d8ca28b91a85370059d3317ec0fd587afaf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2204.08829",
    "kind": "arxiv",
    "version": 4
  }
}