Pith Number

pith:BOCUAB56

pith:2025:BOCUAB566P65DAKLHI6HZFL4UX

not attested not anchored not stored refs pending

Upper bound on the radius of the innermost stable circular orbit of black holes

Yiting Cen, Yong Song

arxiv:2505.02107 v2 · 2025-05-04 · 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{BOCUAB566P65DAKLHI6HZFL4UX}

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	2026-07-05T11:04:50.422281Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0b854007bef3fdd1814b3a3c7c957ca5fd0e38ea965f531d3518901f82c98724

Aliases

arxiv: 2505.02107 · arxiv_version: 2505.02107v2 · doi: 10.48550/arxiv.2505.02107 · pith_short_12: BOCUAB566P65 · pith_short_16: BOCUAB566P65DAKL · pith_short_8: BOCUAB56

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/BOCUAB566P65DAKLHI6HZFL4UX \
  | 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: 0b854007bef3fdd1814b3a3c7c957ca5fd0e38ea965f531d3518901f82c98724

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f092d90faf295b72e5d384e07ae4732f3b1c1f540360f0950625a75b1072b48d",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2025-05-04T13:25:11Z",
    "title_canon_sha256": "41d76983514462a25a1a7f4261571d88b35e28196d5d73f9a7cb3f1a76af08d6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.02107",
    "kind": "arxiv",
    "version": 2
  }
}