Pith Number

pith:EYC3NFNN

pith:2014:EYC3NFNNASIBUU4ZLA6YAUN3BO

not attested not anchored not stored refs pending

Generalized conditional entropy optimization for qudit-qubit states

N. Gigena, R. Rossignoli

arxiv:1409.0807 v2 · 2014-09-02 · 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{EYC3NFNNASIBUU4ZLA6YAUN3BO}

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	2026-05-18T01:42:09.064495Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2605b695ad04901a5399583d8051bb0b8fc330877ed4c726bf0c9ded3f1bce5d

Aliases

arxiv: 1409.0807 · arxiv_version: 1409.0807v2 · doi: 10.48550/arxiv.1409.0807 · pith_short_12: EYC3NFNNASIB · pith_short_16: EYC3NFNNASIBUU4Z · pith_short_8: EYC3NFNN

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/EYC3NFNNASIBUU4ZLA6YAUN3BO \
  | 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: 2605b695ad04901a5399583d8051bb0b8fc330877ed4c726bf0c9ded3f1bce5d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "10eb79e7bbc605a02d02932fd0eae1963be5c0e09985e9f2b680ff8d3d1b5711",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2014-09-02T17:59:02Z",
    "title_canon_sha256": "a35eb25596ced34512885727a37f63a48ccfbf4d0c48a1fbd6dcb05c81256fb9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.0807",
    "kind": "arxiv",
    "version": 2
  }
}