Pith Number

pith:7SUZM6KU

pith:2026:7SUZM6KUOSO5XIVSVJXBCCFOQS

not attested not anchored not stored refs pending

Matchgate circuit representation of fermionic Gaussian states: optimal preparation, approximation, and classical simulation

Adam Gammon-Smith, Barbara Kraus, Frank Pollmann, Marc Langer, Ra\'ul Morral-Yepes

arxiv:2603.05675 v2 · 2026-03-05 · 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{7SUZM6KUOSO5XIVSVJXBCCFOQS}

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

3 papers in Pith

Quantum magic of strongly correlated fermions $-$ the Hubbard dimer

Non-Local Magic Resources for Fermionic Gaussian States

Receipt and verification

First computed	2026-07-01T01:17:48.219395Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fca9967954749ddba2b2aa6e1108ae8494e80b6e82b0ffd7c5288ff332cad9bd

Aliases

arxiv: 2603.05675 · arxiv_version: 2603.05675v2 · doi: 10.48550/arxiv.2603.05675 · pith_short_12: 7SUZM6KUOSO5 · pith_short_16: 7SUZM6KUOSO5XIVS · pith_short_8: 7SUZM6KU

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/7SUZM6KUOSO5XIVSVJXBCCFOQS \
  | 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: fca9967954749ddba2b2aa6e1108ae8494e80b6e82b0ffd7c5288ff332cad9bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "12f26dc83c031240bac892fe75925983e987b173fb253c6b1bd470f2b2d559a4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-03-05T21:06:06Z",
    "title_canon_sha256": "cb1c0e70d5ecd02a7efd17d4d15ec77fe7e199ae618cadefd893c76f657e8367"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2603.05675",
    "kind": "arxiv",
    "version": 2
  }
}