Pith Number

pith:FZBOCTQ7

pith:2024:FZBOCTQ7POGN7UPWHOZJXZBK27

not attested not anchored not stored refs pending

Improved algorithms for learning quantum Hamiltonians, via flat polynomials

Shyam Narayanan

arxiv:2407.04540 v1 · 2024-07-05 · quant-ph · cs.DS · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FZBOCTQ7POGN7UPWHOZJXZBK27}

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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.

Cited by

2 papers in Pith

Provable learning separation for predicting time-evolution of quantum many-body systems

Lower Bounds for Learning Hamiltonians from Time Evolution

Receipt and verification

First computed	2026-07-05T08:40:35.253696Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2e42e14e1f7b8cdfd1f63bb29be42ad7dde166e6fd2fbe3477626f3f5002b5e5

Aliases

arxiv: 2407.04540 · arxiv_version: 2407.04540v1 · doi: 10.48550/arxiv.2407.04540 · pith_short_12: FZBOCTQ7POGN · pith_short_16: FZBOCTQ7POGN7UPW · pith_short_8: FZBOCTQ7

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/FZBOCTQ7POGN7UPWHOZJXZBK27 \
  | 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: 2e42e14e1f7b8cdfd1f63bb29be42ad7dde166e6fd2fbe3477626f3f5002b5e5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "62e1fa02cae2f8643af22f140c0113855da6ea2d25c1a3f53e6918541f40da98",
    "cross_cats_sorted": [
      "cs.DS",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2024-07-05T14:25:22Z",
    "title_canon_sha256": "9a5898642032898fcadb9fcab928fa0b37e9e5f1bd5d14570d500e1f8ef4cfaa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2407.04540",
    "kind": "arxiv",
    "version": 1
  }
}