Pith Number

pith:6SWHRBUG

pith:2025:6SWHRBUGNFQFGHA7DFVO5AUV2H

not attested not anchored not stored refs pending

Heisenberg limited quantum algorithm for estimating the fidelity susceptibility

Xiao Yuan, Yukun Zhang

arxiv:2509.01359 v1 · 2025-09-01 · 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{6SWHRBUGNFQFGHA7DFVO5AUV2H}

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	2026-07-05T12:02:58.968767Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f4ac7886866960531c1f196aee8295d1f47ea7a640e8edc0be16693040fa2d87

Aliases

arxiv: 2509.01359 · arxiv_version: 2509.01359v1 · doi: 10.48550/arxiv.2509.01359 · pith_short_12: 6SWHRBUGNFQF · pith_short_16: 6SWHRBUGNFQFGHA7 · pith_short_8: 6SWHRBUG

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/6SWHRBUGNFQFGHA7DFVO5AUV2H \
  | 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: f4ac7886866960531c1f196aee8295d1f47ea7a640e8edc0be16693040fa2d87

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fd89fe6065f4db7724b968600cea598da2c0715c1e4fb12a0923ae7d5899b18b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2025-09-01T10:56:50Z",
    "title_canon_sha256": "59efaa043e4b621e5b8b8735d8435922725aa377b78e1d52f114b6e3ef478861"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2509.01359",
    "kind": "arxiv",
    "version": 1
  }
}