Pith Number

pith:RXRGOONP

pith:2020:RXRGOONPEOEYVYRUUECDHEUZ2L

not attested not anchored not stored refs pending

Learning Quantum Hamiltonians from Single-qubit Measurements

Chao Wei, Dafa Zhao, Dawei Lu, Jun Li, Liangyu Che, Shunzhong Xue, Tao Xin, Xinfang Nie, Yulei Huang

arxiv:2012.12520 v1 · 2020-12-23 · 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{RXRGOONPEOEYVYRUUECDHEUZ2L}

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	2026-07-05T02:53:31.847984Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8de26739af23898ae234a104339299d2f7502d95eaaf217dba6b62ffdd397a55

Aliases

arxiv: 2012.12520 · arxiv_version: 2012.12520v1 · doi: 10.48550/arxiv.2012.12520 · pith_short_12: RXRGOONPEOEY · pith_short_16: RXRGOONPEOEYVYRU · pith_short_8: RXRGOONP

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/RXRGOONPEOEYVYRUUECDHEUZ2L \
  | 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: 8de26739af23898ae234a104339299d2f7502d95eaaf217dba6b62ffdd397a55

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd6ee757c32fe86ca6bfe9eee206a1751547863dca1c31d000e38ccd92ba2881",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2020-12-23T07:15:20Z",
    "title_canon_sha256": "2f9c5428cf930c121eb97dd0949aff2764076b094519bebedc917b9ecde1425f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.12520",
    "kind": "arxiv",
    "version": 1
  }
}