Pith Number

pith:TC7WQNDS

pith:2019:TC7WQNDSZIMSGQMOU7KUHMF5PB

not attested not anchored not stored refs pending

A gradient algorithm for Hamiltonian identification of open quantum systems

Dewei Li, Min Jiang, Rebing Wu, Shibei Xue

arxiv:1905.09990 v1 · 2019-05-24 · quant-ph · cs.SY · eess.SY

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TC7WQNDSZIMSGQMOU7KUHMF5PB}

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	2026-06-04T20:14:32.798478Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

98bf683472ca1923418ea7d543b0bd787cc4783cdf25001a1c923332b58fe98a

Aliases

arxiv: 1905.09990 · arxiv_version: 1905.09990v1 · doi: 10.48550/arxiv.1905.09990 · pith_short_12: TC7WQNDSZIMS · pith_short_16: TC7WQNDSZIMSGQMO · pith_short_8: TC7WQNDS

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/TC7WQNDSZIMSGQMOU7KUHMF5PB \
  | 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: 98bf683472ca1923418ea7d543b0bd787cc4783cdf25001a1c923332b58fe98a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "44fc5aad92018945ee6af11c8bf662b64a7a86939799541e1befe34e6ecc6922",
    "cross_cats_sorted": [
      "cs.SY",
      "eess.SY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2019-05-24T01:39:22Z",
    "title_canon_sha256": "f8cb50ca40b9cb00c37a9af6165c484c79c8f4599c42508380b724b9ecf03e84"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.09990",
    "kind": "arxiv",
    "version": 1
  }
}