Pith Number

pith:7M2M7EYT

pith:2026:7M2M7EYTYG5JTOSTI5BINVTPGZ

not attested not anchored not stored refs pending

A hardware-efficient variational ansatz with an exact diagonal metric for real- and imaginary-time evolution and Haar sampling

Dario Picozzi

arxiv:2607.07942 v1 · 2026-07-08 · 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{7M2M7EYTYG5JTOSTI5BINVTPGZ}

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	2026-07-10T00:19:05.464607Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fb34cf9313c1ba99ba53474286d66f365f907e842a434ba4c94b752b03383a18

Aliases

arxiv: 2607.07942 · arxiv_version: 2607.07942v1 · doi: 10.48550/arxiv.2607.07942 · pith_short_12: 7M2M7EYTYG5J · pith_short_16: 7M2M7EYTYG5JTOST · pith_short_8: 7M2M7EYT

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/7M2M7EYTYG5JTOSTI5BINVTPGZ \
  | 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: fb34cf9313c1ba99ba53474286d66f365f907e842a434ba4c94b752b03383a18

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9feaf0cca6b014338549f5b289db065c4a0455a3e81e44d22093cdbbbf94029e",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-07-08T21:38:39Z",
    "title_canon_sha256": "c7f3dbed032bf65784103ed803fcd70be4ace0401b461087d429a3d1a3dd1a8a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.07942",
    "kind": "arxiv",
    "version": 1
  }
}