Pith Number

pith:WD4MA43I

pith:2009:WD4MA43I3M3R7JQ5D6SCZU4MV6

not attested not anchored not stored refs pending

Black-box Hamiltonian simulation and unitary implementation

Andrew M. Childs, Dominic W. Berry

arxiv:0910.4157 v4 · 2009-10-22 · 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{WD4MA43I3M3R7JQ5D6SCZU4MV6}

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

2 papers in Pith

Quantum Data Fitting Algorithm for Non-sparse Matrices

Lower overhead fault-tolerant building blocks for noisy quantum computers

Receipt and verification

First computed	2026-05-18T00:09:10.688122Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b0f8c07368db371fa61d1fa42cd38caf8538927a96769b1dc1554059bf52096e

Aliases

arxiv: 0910.4157 · arxiv_version: 0910.4157v4 · doi: 10.48550/arxiv.0910.4157 · pith_short_12: WD4MA43I3M3R · pith_short_16: WD4MA43I3M3R7JQ5 · pith_short_8: WD4MA43I

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/WD4MA43I3M3R7JQ5D6SCZU4MV6 \
  | 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: b0f8c07368db371fa61d1fa42cd38caf8538927a96769b1dc1554059bf52096e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a5e7d76b7f69dbce65396cd7bba3d8538a2acd778459c53d7661ef99c8005d80",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-10-22T19:55:15Z",
    "title_canon_sha256": "1db121695bd7993c32e409ee9a01b610f3ef627a6c7a5080fdb3a56fa36d9641"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.4157",
    "kind": "arxiv",
    "version": 4
  }
}