Pith Number

pith:22MCUCIK

pith:2005:22MCUCIKWSW6BMX3L3AFPKQTBV

not attested not anchored not stored refs pending

Error Correcting the Control Unit in Global Control Schemes

Alastair Kay

arxiv:quant-ph/0504197 v1 · 2005-04-26 · 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{22MCUCIKWSW6BMX3L3AFPKQTBV}

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	2026-07-04T14:46:57.793735Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d6982a090ab4ade0b2fb5ec057aa130d779fe20b8579dc11524f6394e41bed01

Aliases

arxiv: quant-ph/0504197 · arxiv_version: quant-ph/0504197v1 · doi: 10.48550/arxiv.quant-ph/0504197 · pith_short_12: 22MCUCIKWSW6 · pith_short_16: 22MCUCIKWSW6BMX3 · pith_short_8: 22MCUCIK

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/22MCUCIKWSW6BMX3L3AFPKQTBV \
  | 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: d6982a090ab4ade0b2fb5ec057aa130d779fe20b8579dc11524f6394e41bed01

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e8dc6e5f05f82c7b5165d047cae03bbfaba266ef8bf7bfdfe928f3c053f7c6a0",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2005-04-26T16:06:20Z",
    "title_canon_sha256": "d2341ea9bef823dab31874d0d1fd5e0f5772e9a3733e95054fd8d4b8c62fbc5b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0504197",
    "kind": "arxiv",
    "version": 1
  }
}