Pith Number

pith:ZFF4HIQR

pith:2014:ZFF4HIQRZR46R6NSZOSI45AGAX

not attested not anchored not stored refs pending

Fidelity susceptibility and quantum Fisher information for density operators with arbitrary ranks

Fei Song, Heng-Na Xiong, Jing Liu, Xiaoguang Wang

arxiv:1401.3154 v1 · 2014-01-14 · 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{ZFF4HIQRZR46R6NSZOSI45AGAX}

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	2026-05-18T02:51:01.014249Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c94bc3a211cc79e8f9b2cba48e740605e185793bdb1fb2223fd9a838e22b4f82

Aliases

arxiv: 1401.3154 · arxiv_version: 1401.3154v1 · doi: 10.48550/arxiv.1401.3154 · pith_short_12: ZFF4HIQRZR46 · pith_short_16: ZFF4HIQRZR46R6NS · pith_short_8: ZFF4HIQR

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/ZFF4HIQRZR46R6NSZOSI45AGAX \
  | 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: c94bc3a211cc79e8f9b2cba48e740605e185793bdb1fb2223fd9a838e22b4f82

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5efc67b58413fbee2ce93ba814984b747a7de23a890a1c0039473170e2634c61",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2014-01-14T11:54:43Z",
    "title_canon_sha256": "9e8a6f1e93df9e88b75bb6ecdc00b398657b67b9ea5a5a7966067d6da89327ad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.3154",
    "kind": "arxiv",
    "version": 1
  }
}