Pith Number

pith:YSUK4UZ4

pith:1998:YSUK4UZ4WS5IOSCQHWVLTWWLPP

not attested not anchored not stored refs pending

Quantum mutual entropy for Jaynes-Cummings model

Hiroki Suyari, Masanori Ohya, Shigeru Furuichi

arxiv:quant-ph/9804036 v1 · 1998-04-15 · 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{YSUK4UZ4WS5IOSCQHWVLTWWLPP}

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	2026-05-18T04:24:14.427723Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c4a8ae533cb4ba8748503daab9dacb7bec9ce4e461f827c91a47b68117d18a1a

Aliases

arxiv: quant-ph/9804036 · arxiv_version: quant-ph/9804036v1 · doi: 10.48550/arxiv.quant-ph/9804036 · pith_short_12: YSUK4UZ4WS5I · pith_short_16: YSUK4UZ4WS5IOSCQ · pith_short_8: YSUK4UZ4

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/YSUK4UZ4WS5IOSCQHWVLTWWLPP \
  | 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: c4a8ae533cb4ba8748503daab9dacb7bec9ce4e461f827c91a47b68117d18a1a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f4b1be716de9fb4b24ae5f05bf0ccfed5efdb9799600115e654024197b9da1a2",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "1998-04-15T03:48:34Z",
    "title_canon_sha256": "8893cc8af4978db3f295a77ac806c0fba78cebf1322f08ea49d4aad62b02c1f9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/9804036",
    "kind": "arxiv",
    "version": 1
  }
}