Pith Number

pith:76S3STVU

pith:2025:76S3STVUDTPTXZG2TB2F4BBJUV

not attested not anchored not stored refs pending

Gravitational Entropy of Hayward Black Hole

Hideo Iguchi

arxiv:2504.10890 v1 · 2025-04-15 · 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{76S3STVUDTPTXZG2TB2F4BBJUV}

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.

Cited by

1 paper in Pith

Light Rings, Accretion Disks and Shadows of Hayward Boson Stars

Receipt and verification

First computed	2026-07-05T10:49:25.890188Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ffa5b94eb41cdf3be4da98745e0429a572b45767778e800443612b23573e1f20

Aliases

arxiv: 2504.10890 · arxiv_version: 2504.10890v1 · doi: 10.48550/arxiv.2504.10890 · pith_short_12: 76S3STVUDTPT · pith_short_16: 76S3STVUDTPTXZG2 · pith_short_8: 76S3STVU

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/76S3STVUDTPTXZG2TB2F4BBJUV \
  | 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: ffa5b94eb41cdf3be4da98745e0429a572b45767778e800443612b23573e1f20

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f425aa981e9bc8208cfc074183b43f9d0abe8883311abbfd6edadf9e25e86736",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2025-04-15T05:53:40Z",
    "title_canon_sha256": "497e0ed5fe42211f90282debc07b0753faa7f1ca0087a0f266fdf6acff8932c1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.10890",
    "kind": "arxiv",
    "version": 1
  }
}