Pith Number

pith:CKEBXHRX

pith:2010:CKEBXHRX47G3A4P5SAMYRW2GSI

not attested not anchored not stored refs pending

Parameter estimation with mixed quantum states

Daniel Braun

arxiv:1002.1323 v1 · 2010-02-05 · quant-ph · cond-mat.mes-hall · physics.ins-det

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CKEBXHRX47G3A4P5SAMYRW2GSI}

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	2026-05-18T02:09:18.901643Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

12881b9e37e7cdb071fd901988db469226ee4e48cc40ab690b269281298a8c51

Aliases

arxiv: 1002.1323 · arxiv_version: 1002.1323v1 · doi: 10.48550/arxiv.1002.1323 · pith_short_12: CKEBXHRX47G3 · pith_short_16: CKEBXHRX47G3A4P5 · pith_short_8: CKEBXHRX

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/CKEBXHRX47G3A4P5SAMYRW2GSI \
  | 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: 12881b9e37e7cdb071fd901988db469226ee4e48cc40ab690b269281298a8c51

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2f245b07555ed8ccf8e59585ddbd4b0dbff2352c1d96f226c5b47922e19a9709",
    "cross_cats_sorted": [
      "cond-mat.mes-hall",
      "physics.ins-det"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2010-02-05T21:49:57Z",
    "title_canon_sha256": "eca8874a0f17bc955518f763256c0513aa3b3a1ff27cb3f41dec58c707559b9a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1002.1323",
    "kind": "arxiv",
    "version": 1
  }
}