Pith Number

pith:U223HZRL

pith:2025:U223HZRL3QJ4KSYW5ANUJ5Z7QW

not attested not anchored not stored refs pending

The plunging region of a thin accretion disc around a Schwarzschild black hole

Andrew Mummery, Jake Rule, James Stone, Lizhong Zhang, Steven Balbus

arxiv:2505.13701 v1 · 2025-05-19 · 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{U223HZRL3QJ4KSYW5ANUJ5Z7QW}

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	2026-07-05T12:00:01.245848Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a6b5b3e62bdc13c54b16e81b44f73f858a2db6bc62d81693ff408197947f4e8c

Aliases

arxiv: 2505.13701 · arxiv_version: 2505.13701v1 · doi: 10.48550/arxiv.2505.13701 · pith_short_12: U223HZRL3QJ4 · pith_short_16: U223HZRL3QJ4KSYW · pith_short_8: U223HZRL

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/U223HZRL3QJ4KSYW5ANUJ5Z7QW \
  | 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: a6b5b3e62bdc13c54b16e81b44f73f858a2db6bc62d81693ff408197947f4e8c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ec8c9191feda2e124d090954b069f677068b3c263398d3367e7375f9d739927",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2025-05-19T20:03:53Z",
    "title_canon_sha256": "bc963e0431afd083fce23e22cfc5417e6a69c2082f159b9b95215b9a55931304"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.13701",
    "kind": "arxiv",
    "version": 1
  }
}