Pith Number

pith:TB5NFDZN

pith:2024:TB5NFDZNK66C4JPEHR3TVITNGY

not attested not anchored not stored refs pending

Efficient Quantum Gradient and Higher-order Derivative Estimation via Generalized Hadamard Test

Dantong Li, Dikshant Dulal, Hanrui Wang, Mykhailo Ohorodnikov, Yongshan Ding

arxiv:2408.05406 v1 · 2024-08-10 · quant-ph · cs.LG

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

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\usepackage{pith}
\pithnumber{TB5NFDZNK66C4JPEHR3TVITNGY}

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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

1 paper in Pith

Ravines in quantum cost landscapes: opportunities for improved VQA predictions

Receipt and verification

First computed	2026-07-05T08:54:19.859346Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

987ad28f2d57bc2e25e43c773aa26d3614ae9c50241191a5bbe27c0fff4018cb

Aliases

arxiv: 2408.05406 · arxiv_version: 2408.05406v1 · doi: 10.48550/arxiv.2408.05406 · pith_short_12: TB5NFDZNK66C · pith_short_16: TB5NFDZNK66C4JPE · pith_short_8: TB5NFDZN

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/TB5NFDZNK66C4JPEHR3TVITNGY \
  | 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: 987ad28f2d57bc2e25e43c773aa26d3614ae9c50241191a5bbe27c0fff4018cb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "34d098905e7ddb728a1e4357303def3895ba0bf3ec7938dc1c7cc5519140eda7",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2024-08-10T02:08:54Z",
    "title_canon_sha256": "e8c9be81365f280639519e864b33c9aaad73c3efa7f19630de08ad879fc678f7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2408.05406",
    "kind": "arxiv",
    "version": 1
  }
}