Pith Number

pith:GUAKVYGD

pith:2014:GUAKVYGD37ZVYF67Z6OBDFPUPJ

not attested not anchored not stored refs pending

On maximization of measured $f$-divergence between a given pair of quantum states

Keiji Matsumoto

arxiv:1412.3676 v5 · 2014-12-11 · 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{GUAKVYGD37ZVYF67Z6OBDFPUPJ}

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	2026-05-18T01:12:58.680031Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3500aae0c3dff35c17dfcf9c1195f47a5b79f498549547d2e69e4e01863e35f4

Aliases

arxiv: 1412.3676 · arxiv_version: 1412.3676v5 · doi: 10.48550/arxiv.1412.3676 · pith_short_12: GUAKVYGD37ZV · pith_short_16: GUAKVYGD37ZVYF67 · pith_short_8: GUAKVYGD

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/GUAKVYGD37ZVYF67Z6OBDFPUPJ \
  | 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: 3500aae0c3dff35c17dfcf9c1195f47a5b79f498549547d2e69e4e01863e35f4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "037073acee9c067fd036614e4670dbb8cb13b0a9c399c07b5e97df6235afa147",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2014-12-11T15:20:21Z",
    "title_canon_sha256": "e9881344bfdfce016ac0d03fb363e830e310034d8cbbc12c13a686e07e52ad07"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.3676",
    "kind": "arxiv",
    "version": 5
  }
}