Pith Number

pith:RRGM4HP7

pith:2004:RRGM4HP7CECUQOAVWE26KU2VVQ

not attested not anchored not stored refs pending

Fast quantum algorithm for numerical gradient estimation

Stephen P. Jordan

arxiv:quant-ph/0405146 v2 · 2004-05-25 · 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{RRGM4HP7CECUQOAVWE26KU2VVQ}

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.

Cited by

1 paper in Pith

Provable Quantum Advantage for Dynamical Phase Transition

Receipt and verification

First computed	2026-05-18T03:24:20.073367Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8c4cce1dff1105483815b135e55355ac070e90550af2ecec165cb4151f0dbc5b

Aliases

arxiv: quant-ph/0405146 · arxiv_version: quant-ph/0405146v2 · doi: 10.48550/arxiv.quant-ph/0405146 · pith_short_12: RRGM4HP7CECU · pith_short_16: RRGM4HP7CECUQOAV · pith_short_8: RRGM4HP7

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/RRGM4HP7CECUQOAVWE26KU2VVQ \
  | 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: 8c4cce1dff1105483815b135e55355ac070e90550af2ecec165cb4151f0dbc5b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9a880c6b6f9440a1a911a81b212ff44cdd293c3665bddb6aa95239b96b01dfa0",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2004-05-25T19:23:40Z",
    "title_canon_sha256": "e83dde0235d023e2c9a46edc7d1f609867e0ab5f8ec45871d7f6d24463422dd9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0405146",
    "kind": "arxiv",
    "version": 2
  }
}