Pith Number

pith:MBRQ2555

pith:2006:MBRQ255536TUMHGVVSMUU56XOF

not attested not anchored not stored refs pending

Asymptotic quantum cloning is state estimation

Antonio Acin, Joonwoo Bae

arxiv:quant-ph/0603078 v1 · 2006-03-09 · 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{MBRQ255536TUMHGVVSMUU56XOF}

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	2026-05-18T04:40:33.009805Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

60630d77bddfa7461cd5ac994a77d77164bdbf0ca670c9ea03f07f596120313b

Aliases

arxiv: quant-ph/0603078 · arxiv_version: quant-ph/0603078v1 · doi: 10.48550/arxiv.quant-ph/0603078 · pith_short_12: MBRQ255536TU · pith_short_16: MBRQ255536TUMHGV · pith_short_8: MBRQ2555

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/MBRQ255536TUMHGVVSMUU56XOF \
  | 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: 60630d77bddfa7461cd5ac994a77d77164bdbf0ca670c9ea03f07f596120313b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fb8f1e873d96a8b5c09ee0bdcfa23de32df261cb7e194483c0688cf190e1c583",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2006-03-09T16:59:36Z",
    "title_canon_sha256": "9dc799cabe3a80d5c60e7b3400265cb6d752f9347a9eec5bf883eaa8b921b723"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0603078",
    "kind": "arxiv",
    "version": 1
  }
}