Pith Number

pith:WGKQV4WI

pith:2025:WGKQV4WIIEBJT6RIJ2XYOG2QJ5

not attested not anchored not stored refs pending

The inner structure and thermodynamics of a thin accretion disc

A. Hankla, J. Dexter, N. Scepi

arxiv:2504.21207 v2 · 2025-04-29 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WGKQV4WIIEBJT6RIJ2XYOG2QJ5}

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

The plunging region of thin accretion discs across the black hole spin range

Receipt and verification

First computed	2026-07-05T12:00:00.552974Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b1950af2c8410299fa284eaf871b504f5083b1f7d4a6ca831074d5d65d87ea69

Aliases

arxiv: 2504.21207 · arxiv_version: 2504.21207v2 · doi: 10.48550/arxiv.2504.21207 · pith_short_12: WGKQV4WIIEBJ · pith_short_16: WGKQV4WIIEBJT6RI · pith_short_8: WGKQV4WI

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/WGKQV4WIIEBJT6RIJ2XYOG2QJ5 \
  | 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: b1950af2c8410299fa284eaf871b504f5083b1f7d4a6ca831074d5d65d87ea69

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "875c8074e2c5c1286535225384d17d46ecb84c85f4e9c0df53fdd8f9736f7db1",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2025-04-29T22:23:35Z",
    "title_canon_sha256": "9d2e2a36bcabd3c55ee76886248d7079dd55e8fe3dd30bbf8656b8be7d7c726c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.21207",
    "kind": "arxiv",
    "version": 2
  }
}