Pith Number

pith:2RZCVA4B

pith:2013:2RZCVA4B6ZRHE72RM2YRPL6OMZ

not attested not anchored not stored refs pending

Global versus local optimality in feedback-controlled qubit purification: new insights from minimizing R\'enyi entropies

Colin Teo, Howard M. Wiseman, Joshua Combes

arxiv:1312.1015 v2 · 2013-12-04 · 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{2RZCVA4B6ZRHE72RM2YRPL6OMZ}

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	2026-05-18T02:39:16.655396Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d4722a8381f662727f5166b117afce665e17c54cb511f4b26307a9fbea9a7ba6

Aliases

arxiv: 1312.1015 · arxiv_version: 1312.1015v2 · doi: 10.48550/arxiv.1312.1015 · pith_short_12: 2RZCVA4B6ZRH · pith_short_16: 2RZCVA4B6ZRHE72R · pith_short_8: 2RZCVA4B

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/2RZCVA4B6ZRHE72RM2YRPL6OMZ \
  | 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: d4722a8381f662727f5166b117afce665e17c54cb511f4b26307a9fbea9a7ba6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "67cc0b6c06dac81b1cd913db6c2bba12908f8fee589cd305b85f94e6e77aa2d2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-12-04T03:43:32Z",
    "title_canon_sha256": "f2d0f3ee82a8ef5255f52cefb3c509544b294da56418ab560286dc4e3c5029de"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.1015",
    "kind": "arxiv",
    "version": 2
  }
}