Pith Number

pith:LWVRUMRO

pith:2025:LWVRUMROPI7MTPXOYDC22C35MB

not attested not anchored not stored refs pending

Holographic Entanglement Entropy in the FLRW Universe

Fumiya Sano, Toshifumi Noumi, Yu-ki Suzuki

arxiv:2504.10457 v2 · 2025-04-14 · hep-th · astro-ph.CO · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LWVRUMROPI7MTPXOYDC22C35MB}

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	2026-07-05T11:56:18.820787Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5dab1a322e7a3ec9beeec0c5ad0b7d6060b3201129cf8dd7885285f918d365d6

Aliases

arxiv: 2504.10457 · arxiv_version: 2504.10457v2 · doi: 10.48550/arxiv.2504.10457 · pith_short_12: LWVRUMROPI7M · pith_short_16: LWVRUMROPI7MTPXO · pith_short_8: LWVRUMRO

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/LWVRUMROPI7MTPXOYDC22C35MB \
  | 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: 5dab1a322e7a3ec9beeec0c5ad0b7d6060b3201129cf8dd7885285f918d365d6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5cb86b0bf8377030e4c731761ddefc3c01fa75c2fa9ccccbfc5b7f76d7b52ffa",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2025-04-14T17:44:34Z",
    "title_canon_sha256": "cc05bfc60ba94a1921e036d37805272c80d45986e3ba80a6922a6e2cdfeb6141"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.10457",
    "kind": "arxiv",
    "version": 2
  }
}