Pith Number

pith:P6VJJKUT

pith:2012:P6VJJKUTSSR74JYIRNLI2IGUUX

not attested not anchored not stored refs pending

Hierarchy of measurement-induced Fisher information for composite states

C. H. Oh, Shunlong Luo, Xiao-Ming Lu

arxiv:1208.0104 v1 · 2012-08-01 · quant-ph · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{P6VJJKUTSSR74JYIRNLI2IGUUX}

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	2026-05-18T03:46:30.533044Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7faa94aa9394a3fe27088b568d20d4a5f612082927e94016d48ca8b38919b31e

Aliases

arxiv: 1208.0104 · arxiv_version: 1208.0104v1 · doi: 10.48550/arxiv.1208.0104 · pith_short_12: P6VJJKUTSSR7 · pith_short_16: P6VJJKUTSSR74JYI · pith_short_8: P6VJJKUT

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/P6VJJKUTSSR74JYIRNLI2IGUUX \
  | 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: 7faa94aa9394a3fe27088b568d20d4a5f612082927e94016d48ca8b38919b31e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d24db6a919bea357e96ba3a5d854ba34115e25e3ecf68ebb2b7900fa8cea5cf",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-08-01T04:53:04Z",
    "title_canon_sha256": "242db5613893e50a164319cdcaebbb0989fa40c73e615226896d3e96b665ac89"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.0104",
    "kind": "arxiv",
    "version": 1
  }
}