Pith Number

pith:4T2GWJNS

pith:2014:4T2GWJNSIWW7IWMODZOGMQU76L

not attested not anchored not stored refs pending

Optimal quantum parameter estimation of two interacting qubits under decoherence

Yao Yao, Yong Li, Zheng Qiang

arxiv:1401.2733 v1 · 2014-01-13 · 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{4T2GWJNSIWW7IWMODZOGMQU76L}

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	2026-05-18T03:02:32.309809Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e4f46b25b245adf4598e1e5c66429ff2cabf06afd12729c46b24da95d5e43be5

Aliases

arxiv: 1401.2733 · arxiv_version: 1401.2733v1 · doi: 10.48550/arxiv.1401.2733 · pith_short_12: 4T2GWJNSIWW7 · pith_short_16: 4T2GWJNSIWW7IWMO · pith_short_8: 4T2GWJNS

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/4T2GWJNSIWW7IWMODZOGMQU76L \
  | 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: e4f46b25b245adf4598e1e5c66429ff2cabf06afd12729c46b24da95d5e43be5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "589a66a4162fced266e411256dc3973c4f912f085cea00ee247708bf6e4f55ef",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2014-01-13T07:21:12Z",
    "title_canon_sha256": "46e75702add0badf3c47bba0d4b0629ee51514b49c82f980fb1b17188b63377c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.2733",
    "kind": "arxiv",
    "version": 1
  }
}