Pith Number

pith:MU7QAWYB

pith:2026:MU7QAWYB7ZJTNILVTAMMCVO5QO

not attested not anchored not stored refs pending

Excitation Flow, Positivity, and Fisher Information for Open Subsystems of an $N$-Qubit Network

Sarah Shandera, Tommy Chin

arxiv:2605.15036 v1 · 2026-05-14 · 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{MU7QAWYB7ZJTNILVTAMMCVO5QO}

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	2026-05-17T23:38:54.534610Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

653f005b01fe5336a1759818c155dd83835db24f86a02aea094dac35be519648

Aliases

arxiv: 2605.15036 · arxiv_version: 2605.15036v1 · doi: 10.48550/arxiv.2605.15036 · pith_short_12: MU7QAWYB7ZJT · pith_short_16: MU7QAWYB7ZJTNILV · pith_short_8: MU7QAWYB

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/MU7QAWYB7ZJTNILVTAMMCVO5QO \
  | 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: 653f005b01fe5336a1759818c155dd83835db24f86a02aea094dac35be519648

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a4673ad005d2fb33a58e13fdae2c53a4ce37a5290306b75247b0f255ddad02f0",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-05-14T16:30:48Z",
    "title_canon_sha256": "8325da9bfe95098410d759226533732d09c69bc98c247065de1ff046b4cb13b1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.15036",
    "kind": "arxiv",
    "version": 1
  }
}