Pith Number

pith:EJNXLBC4

pith:2015:EJNXLBC44QGBRGSATSZKNBDMVN

not attested not anchored not stored refs pending

Quantum metrology with mixed states: When recovering lost information is better than never losing it

Simon A. Haine, Stuart S. Szigeti

arxiv:1507.03054 v2 · 2015-07-11 · quant-ph · cond-mat.quant-gas

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EJNXLBC44QGBRGSATSZKNBDMVN}

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	2026-05-18T01:32:36.913364Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

225b75845ce40c189a409cb2a6846cab7c2210283e4aeba265b1f3c9fbcd8ad1

Aliases

arxiv: 1507.03054 · arxiv_version: 1507.03054v2 · doi: 10.48550/arxiv.1507.03054 · pith_short_12: EJNXLBC44QGB · pith_short_16: EJNXLBC44QGBRGSA · pith_short_8: EJNXLBC4

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/EJNXLBC44QGBRGSATSZKNBDMVN \
  | 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: 225b75845ce40c189a409cb2a6846cab7c2210283e4aeba265b1f3c9fbcd8ad1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c74e07500a98e95841b032ac5fadc660d79796872572732d9ddf190ad5a74e7",
    "cross_cats_sorted": [
      "cond-mat.quant-gas"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-07-11T01:59:53Z",
    "title_canon_sha256": "a93dbddd541196329837006e076fcc14d136b4c2cea79b6644ef23f9f8e90024"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.03054",
    "kind": "arxiv",
    "version": 2
  }
}