Pith Number

pith:QUVNHL55

pith:2013:QUVNHL556K7GEO62ATDU2TDFI3

not attested not anchored not stored refs pending

Optimality of qubit purification protocols in the presence of imperfections

Alireza Shabani, Birgitta K. Whaley, Hanhan Li, Mohan Sarovar

arxiv:1302.2726 v1 · 2013-02-12 · 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{QUVNHL556K7GEO62ATDU2TDFI3}

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	2026-05-18T03:29:26.674879Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

852ad3afbdf2be623bda04c74d4c6546ec1d68ae1640d912581595eed8231c28

Aliases

arxiv: 1302.2726 · arxiv_version: 1302.2726v1 · doi: 10.48550/arxiv.1302.2726 · pith_short_12: QUVNHL556K7G · pith_short_16: QUVNHL556K7GEO62 · pith_short_8: QUVNHL55

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/QUVNHL556K7GEO62ATDU2TDFI3 \
  | 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: 852ad3afbdf2be623bda04c74d4c6546ec1d68ae1640d912581595eed8231c28

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ec1d2bfdbafdaee2141fb0e90e5ec45e001516836fe9e267f7a07a20b8ffa8ad",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-02-12T08:14:40Z",
    "title_canon_sha256": "950dd64c816cb8d58ff9241306d02d69faf8b903635265fd53eba6d0fd464e30"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.2726",
    "kind": "arxiv",
    "version": 1
  }
}