Pith Number

pith:KRDS7IZ2

pith:2016:KRDS7IZ2A56TMUUZZLR2P3QTJC

not attested not anchored not stored refs pending

Discontinuities of the quantum Fisher information and the Bures metric

Dominik \v{S}afr\'anek

arxiv:1612.04581 v2 · 2016-12-14 · 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{KRDS7IZ2A56TMUUZZLR2P3QTJC}

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	2026-05-18T00:44:23.976510Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

54472fa33a077d365299cae3a7ee134887b0e8f1e76427829e55ffd33d14abb6

Aliases

arxiv: 1612.04581 · arxiv_version: 1612.04581v2 · doi: 10.48550/arxiv.1612.04581 · pith_short_12: KRDS7IZ2A56T · pith_short_16: KRDS7IZ2A56TMUUZ · pith_short_8: KRDS7IZ2

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/KRDS7IZ2A56TMUUZZLR2P3QTJC \
  | 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: 54472fa33a077d365299cae3a7ee134887b0e8f1e76427829e55ffd33d14abb6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "16b0616e975fa89348697ee7c6bd5ae03581c4672ad50b7d0f5b714bc1fe88ba",
    "cross_cats_sorted": [
      "cond-mat.quant-gas"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2016-12-14T11:19:59Z",
    "title_canon_sha256": "475af4153b69b4f0c23b3adce426889bf3b2385a04a7a75c6393ceec36e4b527"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.04581",
    "kind": "arxiv",
    "version": 2
  }
}