Pith Number

pith:7ZLULIU4

pith:2026:7ZLULIU4UDS3M2SJWVMFPOASOR

not attested not anchored not stored refs pending

Optimal Ansatz-free Hamiltonian Learning In Situ

Taiqi Zhou, Weiyuan Gong

arxiv:2606.19486 v1 · 2026-06-17 · quant-ph · cs.IT · cs.LG · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7ZLULIU4UDS3M2SJWVMFPOASOR}

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	2026-06-19T16:12:27.060097Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fe5745a29ca0e5b66a49b55857b812744f97340a24ff02a91a684f91a1f0f27c

Aliases

arxiv: 2606.19486 · arxiv_version: 2606.19486v1 · doi: 10.48550/arxiv.2606.19486 · pith_short_12: 7ZLULIU4UDS3 · pith_short_16: 7ZLULIU4UDS3M2SJ · pith_short_8: 7ZLULIU4

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/7ZLULIU4UDS3M2SJWVMFPOASOR \
  | 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: fe5745a29ca0e5b66a49b55857b812744f97340a24ff02a91a684f91a1f0f27c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "91cdceb5eeec13a345219653d6019f05ab7ad54c2cac65c6f3b8d22b1295fb7f",
    "cross_cats_sorted": [
      "cs.IT",
      "cs.LG",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-06-17T18:21:30Z",
    "title_canon_sha256": "f511ab1a3100a8d234212870dab4603cef7c82ddab9c60d3fbf47b12e1a3917f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.19486",
    "kind": "arxiv",
    "version": 1
  }
}