Pith Number

pith:WWPPNO6V

pith:2015:WWPPNO6VGOJGSGDS76LJLXZM6K

not attested not anchored not stored refs pending

Fidelity between a bipartite state and another one undergoing local unitary dynamics

Kaifeng Bu, Lin Chen, Lin Zhang

arxiv:1501.07742 v4 · 2015-01-30 · 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{WWPPNO6VGOJGSGDS76LJLXZM6K}

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	2026-05-18T01:26:25.446532Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b59ef6bbd53392691872ff9695df2cf2a7088c4320efa4720b8d9a0760c8c134

Aliases

arxiv: 1501.07742 · arxiv_version: 1501.07742v4 · doi: 10.48550/arxiv.1501.07742 · pith_short_12: WWPPNO6VGOJG · pith_short_16: WWPPNO6VGOJGSGDS · pith_short_8: WWPPNO6V

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/WWPPNO6VGOJGSGDS76LJLXZM6K \
  | 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: b59ef6bbd53392691872ff9695df2cf2a7088c4320efa4720b8d9a0760c8c134

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "06e92cb8a1f0f81095ed56a805d74ba5ed6338362ad90c889fef64fb4d0343ac",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-01-30T12:02:43Z",
    "title_canon_sha256": "1ce025a6903b4447f0431c3ee5e88e6febe1ac5580483a230139afaa67a1a248"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.07742",
    "kind": "arxiv",
    "version": 4
  }
}