Pith Number

pith:X3ASK7SA

pith:2004:X3ASK7SA2OOTJWU4BUDCVURRDS

not attested not anchored not stored refs pending

Strong Analytic Controllability for Hydrogen Control Systems

Chunhua Lan, John W. Clark, Quo-Shin Chi, Tzyh-Jong Tarn

arxiv:quant-ph/0409146 v2 · 2004-09-22 · 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{X3ASK7SA2OOTJWU4BUDCVURRDS}

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	2026-07-04T14:46:41.355776Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bec1257e40d39d34da9c0d062ad2311c9377ae8235081fc0dabfa6c9319d7316

Aliases

arxiv: quant-ph/0409146 · arxiv_version: quant-ph/0409146v2 · doi: 10.48550/arxiv.quant-ph/0409146 · pith_short_12: X3ASK7SA2OOT · pith_short_16: X3ASK7SA2OOTJWU4 · pith_short_8: X3ASK7SA

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/X3ASK7SA2OOTJWU4BUDCVURRDS \
  | 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: bec1257e40d39d34da9c0d062ad2311c9377ae8235081fc0dabfa6c9319d7316

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "77218a2d7921580993944d4049edca66cb98080a5e4627d8e5f0eb2f59084cdc",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2004-09-22T00:45:54Z",
    "title_canon_sha256": "166b524cd30ba4d146b46b1ef4fc777a9eaf195d5cbb9d614c3eb53a5633aa7f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0409146",
    "kind": "arxiv",
    "version": 2
  }
}