Pith Number

pith:7PTX6ERE

pith:2008:7PTX6ERESIUXFI6SYRXRTIPOQL

not attested not anchored not stored refs pending

Fidelity induced distance measures for quantum states

Fu-Lin Zhang, Jing-Ling Chen, Zhihao Ma

arxiv:0808.0984 v3 · 2008-08-07 · 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{7PTX6ERESIUXFI6SYRXRTIPOQL}

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	2026-05-18T02:15:43.838033Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fbe77f1224922972a3d2c46f19a1ee82c94b3b6936e6bcc140baaffc69040d35

Aliases

arxiv: 0808.0984 · arxiv_version: 0808.0984v3 · doi: 10.48550/arxiv.0808.0984 · pith_short_12: 7PTX6ERESIUX · pith_short_16: 7PTX6ERESIUXFI6S · pith_short_8: 7PTX6ERE

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/7PTX6ERESIUXFI6SYRXRTIPOQL \
  | 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: fbe77f1224922972a3d2c46f19a1ee82c94b3b6936e6bcc140baaffc69040d35

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fac1a6233470166450a84c21327521996dc4ab4e4a7977405a9eeb6d0fd7f732",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2008-08-07T09:06:22Z",
    "title_canon_sha256": "d8fce71e50a98c3bb2c8176960b5c90e7277e09f1e48f54ba19d0f57c299e5f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0808.0984",
    "kind": "arxiv",
    "version": 3
  }
}