Pith Number

pith:ZT5UGWUM

pith:2026:ZT5UGWUM2A3WVV2MIGDEWU4AMQ

not attested not anchored not stored refs pending

Finite-Syndrome Compression of Quantum Fisher Information

Jianqi Sheng

arxiv:2608.02333 v1 · 2026-08-03 · quant-ph · math-ph · math.MP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZT5UGWUM2A3WVV2MIGDEWU4AMQ}

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	2026-08-04T02:11:50.004891Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ccfb435a8cd0376ad74c41864b5380643ca6b4090bcf0cb73beeca7a0678f7a3

Aliases

arxiv: 2608.02333 · arxiv_version: 2608.02333v1 · doi: 10.48550/arxiv.2608.02333 · pith_short_12: ZT5UGWUM2A3W · pith_short_16: ZT5UGWUM2A3WVV2M · pith_short_8: ZT5UGWUM

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/ZT5UGWUM2A3WVV2MIGDEWU4AMQ \
  | 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: ccfb435a8cd0376ad74c41864b5380643ca6b4090bcf0cb73beeca7a0678f7a3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ef8987f08fdccc4e34288afa49a332ea4111965a4a302aaaba37f3ec93e477ec",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-08-03T14:53:35Z",
    "title_canon_sha256": "b52206d36cfc36eaa36d9e050bd615692861e56abf3a49c5cc5826aa5bcb7bd1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2608.02333",
    "kind": "arxiv",
    "version": 1
  }
}