Pith Number

pith:RF2ZZPYE

pith:2005:RF2ZZPYELYF6F3JV3W2JTEZNDV

not attested not anchored not stored refs pending

A method to find quantum noiseless subsystems

David W. Kribs, Man-Duen Choi

arxiv:quant-ph/0507213 v2 · 2005-07-21 · 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{RF2ZZPYELYF6F3JV3W2JTEZNDV}

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	2026-07-04T16:58:05.928196Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

89759cbf045e0be2ed35ddb499932d1d5c84de8a01ae8dde8ccb01c034970637

Aliases

arxiv: quant-ph/0507213 · arxiv_version: quant-ph/0507213v2 · doi: 10.48550/arxiv.quant-ph/0507213 · pith_short_12: RF2ZZPYELYF6 · pith_short_16: RF2ZZPYELYF6F3JV · pith_short_8: RF2ZZPYE

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/RF2ZZPYELYF6F3JV3W2JTEZNDV \
  | 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: 89759cbf045e0be2ed35ddb499932d1d5c84de8a01ae8dde8ccb01c034970637

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1002ca798c23f0c7a05de966fed52b33532b451cd46906bb1e15efcfe22b61a5",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2005-07-21T22:47:12Z",
    "title_canon_sha256": "76be11b89b92633d1469d9a93a2054ad5b6c49e05c5448f5fc4c21db0b750310"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0507213",
    "kind": "arxiv",
    "version": 2
  }
}