Pith Number

pith:M37WB6LV

pith:1999:M37WB6LVSIWWXG3DSMLUEEACXK

not attested not anchored not stored refs pending

Decoherence-Free Subspaces for Multiple-Qubit Errors: (I) Characterization

Daniel A. Lidar, Dave Bacon, Julia Kempe, K.B. Whaley (UC Berkeley)

arxiv:quant-ph/9908064 v2 · 1999-08-19 · 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{M37WB6LVSIWWXG3DSMLUEEACXK}

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	2026-05-18T01:05:00.259821Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

66ff60f975922d6b9b639317421002ba8a8bf4887bba11ad018ace55e025b02f

Aliases

arxiv: quant-ph/9908064 · arxiv_version: quant-ph/9908064v2 · doi: 10.48550/arxiv.quant-ph/9908064 · pith_short_12: M37WB6LVSIWW · pith_short_16: M37WB6LVSIWWXG3D · pith_short_8: M37WB6LV

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/M37WB6LVSIWWXG3DSMLUEEACXK \
  | 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: 66ff60f975922d6b9b639317421002ba8a8bf4887bba11ad018ace55e025b02f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "58cfde3ed322a948890c67d7fd5fe2b99ef92cee84cc741bd34282a85873b2ba",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "1999-08-19T01:28:58Z",
    "title_canon_sha256": "63ff8c1d2f01725e6e37d5778a3ea3422b7b99b25746bf149cbe7c25b40fb01d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/9908064",
    "kind": "arxiv",
    "version": 2
  }
}