Pith Number

pith:QVTVPSH5

pith:2009:QVTVPSH5BFHNA7GZMF7WWUUCY3

not attested not anchored not stored refs pending

Implementation of a Quantum-simulation Algorithm of Calculating Molecular Ground-state Energy on an NMR Quantum Computer

Dawei Lu, Jiangfeng Du, Nanyang Xu, Pengfei Wang, Sanfeng Wu, Xinhua Peng

arxiv:0907.3642 v2 · 2009-07-21 · 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{QVTVPSH5BFHNA7GZMF7WWUUCY3}

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	2026-07-04T15:46:33.332167Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

856757c8fd094ed07cd9617f6b5282c6ffefc30dc949107c1a0fea3e9d9844eb

Aliases

arxiv: 0907.3642 · arxiv_version: 0907.3642v2 · doi: 10.48550/arxiv.0907.3642 · pith_short_12: QVTVPSH5BFHN · pith_short_16: QVTVPSH5BFHNA7GZ · pith_short_8: QVTVPSH5

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/QVTVPSH5BFHNA7GZMF7WWUUCY3 \
  | 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: 856757c8fd094ed07cd9617f6b5282c6ffefc30dc949107c1a0fea3e9d9844eb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a5747ec636f762646d2ae6c08f5faba9b725e8e63088137fef2ee208b8148e4d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-07-21T10:14:33Z",
    "title_canon_sha256": "7e0fe1a92c3a78fee53621ce10f89860ef618903704bd44d313297eeb77caffa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.3642",
    "kind": "arxiv",
    "version": 2
  }
}