Pith Number

pith:45BW4W6R

pith:2001:45BW4W6RPJNJ72TPO2Z2SU6I63

not attested not anchored not stored refs pending

Creating Decoherence-Free Subspaces with Strong and Fast Pulses

D.A. Lidar (University of Toronto), L.-A. Wu

arxiv:quant-ph/0112144 v2 · 2001-12-22 · 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{45BW4W6RPJNJ72TPO2Z2SU6I63}

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	2026-05-18T01:05:04.685092Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e7436e5bd17a5a9fea6f76b3a953c8f6d9f23a97fb127bdd97255b9349fb55f4

Aliases

arxiv: quant-ph/0112144 · arxiv_version: quant-ph/0112144v2 · doi: 10.48550/arxiv.quant-ph/0112144 · pith_short_12: 45BW4W6RPJNJ · pith_short_16: 45BW4W6RPJNJ72TP · pith_short_8: 45BW4W6R

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/45BW4W6RPJNJ72TPO2Z2SU6I63 \
  | 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: e7436e5bd17a5a9fea6f76b3a953c8f6d9f23a97fb127bdd97255b9349fb55f4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "729fe4af84adf978f46f130f29f15783d098c770f4ea08fc664c1cf284450785",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2001-12-22T05:23:59Z",
    "title_canon_sha256": "4efc32e7c6173e858d7db1bde531884e2e0175c52667c57db3108555e35f9da4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0112144",
    "kind": "arxiv",
    "version": 2
  }
}