Pith Number

pith:UDAZSJBV

pith:2008:UDAZSJBVEB4OWKV2GFEGCWNO4E

not attested not anchored not stored refs pending

Quantum Cloning without Interference

Benoit Roubert, Daniel Braun

arxiv:0807.1657 v1 · 2008-07-10 · 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{UDAZSJBVEB4OWKV2GFEGCWNO4E}

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	2026-05-18T02:15:45.382645Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a0c19924352078eb2aba31486159aee10dd3b949a4c6c0d78eb6d52861208edd

Aliases

arxiv: 0807.1657 · arxiv_version: 0807.1657v1 · doi: 10.48550/arxiv.0807.1657 · pith_short_12: UDAZSJBVEB4O · pith_short_16: UDAZSJBVEB4OWKV2 · pith_short_8: UDAZSJBV

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/UDAZSJBVEB4OWKV2GFEGCWNO4E \
  | 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: a0c19924352078eb2aba31486159aee10dd3b949a4c6c0d78eb6d52861208edd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "99579ae85f4e5e7f2481e7bde6c246514f7f149891f43302c0dcfc248e6b5f58",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2008-07-10T14:10:47Z",
    "title_canon_sha256": "9ca21b25648eea810088175a43faf61c6474ef6765fe1e05d61a45e139ef8e1c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0807.1657",
    "kind": "arxiv",
    "version": 1
  }
}