Pith Number

pith:4PDQIKFW

pith:2025:4PDQIKFWPSNEVISZUBBJEWPZ66

not attested not anchored not stored refs pending

Generalised state space geometry in Hermitian and non-Hermitian quantum systems

Kunal Pal

arxiv:2507.18486 v1 · 2025-07-24 · 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{4PDQIKFWPSNEVISZUBBJEWPZ66}

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	2026-07-05T11:42:48.827829Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e3c70428b67c9a4aa259a0429259f9f7bdde65a0453f6b6bfba646d07467d664

Aliases

arxiv: 2507.18486 · arxiv_version: 2507.18486v1 · doi: 10.48550/arxiv.2507.18486 · pith_short_12: 4PDQIKFWPSNE · pith_short_16: 4PDQIKFWPSNEVISZ · pith_short_8: 4PDQIKFW

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/4PDQIKFWPSNEVISZUBBJEWPZ66 \
  | 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: e3c70428b67c9a4aa259a0429259f9f7bdde65a0453f6b6bfba646d07467d664

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b14fca538d8de7162974fa50f88f12374487a4a6349d3cad28a1821104c59b0d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2025-07-24T15:01:04Z",
    "title_canon_sha256": "1ec6d9a8f09ea43427f0c7230e1ced7719be00d736703a9a7676e92b8ddb8d68"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.18486",
    "kind": "arxiv",
    "version": 1
  }
}