Pith Number

pith:MIDZR6BH

pith:2013:MIDZR6BHM6XGX42GYT3KQFKMQS

not attested not anchored not stored refs pending

Quantum state cloning using Deutschian closed timelike curves

Andreas Winter, Mark M. Wilde, Todd A. Brun

arxiv:1306.1795 v3 · 2013-06-07 · 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{MIDZR6BHM6XGX42GYT3KQFKMQS}

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	2026-05-18T02:46:15.060152Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

620798f82767ae6bf346c4f6a8154c848bcdb43fe9d8c6c39d0fc7f6770dafaf

Aliases

arxiv: 1306.1795 · arxiv_version: 1306.1795v3 · doi: 10.48550/arxiv.1306.1795 · pith_short_12: MIDZR6BHM6XG · pith_short_16: MIDZR6BHM6XGX42G · pith_short_8: MIDZR6BH

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/MIDZR6BHM6XGX42GYT3KQFKMQS \
  | 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: 620798f82767ae6bf346c4f6a8154c848bcdb43fe9d8c6c39d0fc7f6770dafaf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e9d9d4e14f4cf1f8a36b88a47abad7516aa6921ca642cbc5f8267bef4fde351b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-06-07T17:54:16Z",
    "title_canon_sha256": "25353bebaca92689995b84040280f3c8c2e7d265f01bf7e73b9ad61eaae6c808"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.1795",
    "kind": "arxiv",
    "version": 3
  }
}