Pith Number

pith:FBRLUYB4

pith:2013:FBRLUYB4MLM2TQC5NNVWQQ2DVZ

not attested not anchored not stored refs pending

A lower bound on the fidelity between two states in terms of their Bures distance

Junde Wu, Lin Zhang

arxiv:1309.6374 v3 · 2013-09-25 · 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{FBRLUYB4MLM2TQC5NNVWQQ2DVZ}

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	2026-05-18T02:45:31.903837Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2862ba603c62d9a9c05d6b6b684343ae540d3bae424aa8cdbc392132af012429

Aliases

arxiv: 1309.6374 · arxiv_version: 1309.6374v3 · doi: 10.48550/arxiv.1309.6374 · pith_short_12: FBRLUYB4MLM2 · pith_short_16: FBRLUYB4MLM2TQC5 · pith_short_8: FBRLUYB4

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/FBRLUYB4MLM2TQC5NNVWQQ2DVZ \
  | 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: 2862ba603c62d9a9c05d6b6b684343ae540d3bae424aa8cdbc392132af012429

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d2d807765c2b79abc40ce4bdb80af25e73f085503e45765d7712de9e66a34bc",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-09-25T00:30:42Z",
    "title_canon_sha256": "b88155263de4ef640c035d5334964fcd5e949d6827fcb010a57dd4bdfcbf0d2d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.6374",
    "kind": "arxiv",
    "version": 3
  }
}