Pith Number

pith:UQ7QOUUY

pith:2010:UQ7QOUUYV5DROBIAULFBBXKMCZ

not attested not anchored not stored refs pending

Local cloning of CAT states

Ramij Rahaman

arxiv:1008.2889 v2 · 2010-08-17 · quant-ph · math-ph · math.MP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UQ7QOUUYV5DROBIAULFBBXKMCZ}

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	2026-05-18T04:20:22.214664Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a43f075298af47170500a2ca10dd4c167dab6567880e10c652e8173fe727d61d

Aliases

arxiv: 1008.2889 · arxiv_version: 1008.2889v2 · doi: 10.48550/arxiv.1008.2889 · pith_short_12: UQ7QOUUYV5DR · pith_short_16: UQ7QOUUYV5DROBIA · pith_short_8: UQ7QOUUY

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/UQ7QOUUYV5DROBIAULFBBXKMCZ \
  | 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: a43f075298af47170500a2ca10dd4c167dab6567880e10c652e8173fe727d61d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f5c132a0fa90867e818d68d4b999d9623488413962f87d51fd40e3585a156c6c",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2010-08-17T13:30:29Z",
    "title_canon_sha256": "e68fd3fcae7ea14087356ea52b185be7d97ed96d4060b4b84599bd3fec1b6b8f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1008.2889",
    "kind": "arxiv",
    "version": 2
  }
}