Pith Number

pith:XS2XV6IF

pith:2026:XS2XV6IF2BQI5ELCN7EJHLNMU6

not attested not anchored not stored refs pending

Ring Position Angles and Spin in M87* and Sgr A*

Abhishek V. Joshi, Charles F. Gammie, Cora Prather, Michi Baub\"ock, Nicholas S. Conroy, Paul Tiede, Vadim Bernshteyn

arxiv:2606.11322 v1 · 2026-06-09 · 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{XS2XV6IF2BQI5ELCN7EJHLNMU6}

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	2026-06-11T00:08:19.326994Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bcb57af905d0608e91626fc893adaca7991144e124afef6b7d2b7da9b96f1178

Aliases

arxiv: 2606.11322 · arxiv_version: 2606.11322v1 · doi: 10.48550/arxiv.2606.11322 · pith_short_12: XS2XV6IF2BQI · pith_short_16: XS2XV6IF2BQI5ELC · pith_short_8: XS2XV6IF

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/XS2XV6IF2BQI5ELCN7EJHLNMU6 \
  | 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: bcb57af905d0608e91626fc893adaca7991144e124afef6b7d2b7da9b96f1178

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "400cd8b5cea4140483319bc7eaa9de96c6b096661afb089b033d73d99c6d49f1",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2026-06-09T18:04:20Z",
    "title_canon_sha256": "5aa3ec57d57c812ed30e7804ea6972acdbe5a9f13a5e5943aabcc2f70412c8c9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.11322",
    "kind": "arxiv",
    "version": 1
  }
}