Pith Number

pith:U6G6RU34

pith:2005:U6G6RU342L6UCTW4JFRAICKEJU

not attested not anchored not stored refs pending

A size of ~1 AU for the radio source Sgr A* at the centre of the Milky Way

J.-H. Zhao, K. Y. Lo, M.-C. Liang, Paul T. P. Ho, Zhi-Qiang Shen

arxiv:astro-ph/0512515 v2 · 2005-12-21 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U6G6RU342L6UCTW4JFRAICKEJU}

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

Thermodynamics and Shadows of Kerr black holes endowed with a global monopole charge

Receipt and verification

First computed	2026-07-04T17:14:45.292337Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a78de8d37cd2fd414edc49620409444d3a623eb7c1ed4521f5cf36f86bdf19d1

Aliases

arxiv: astro-ph/0512515 · arxiv_version: astro-ph/0512515v2 · doi: 10.48550/arxiv.astro-ph/0512515 · pith_short_12: U6G6RU342L6U · pith_short_16: U6G6RU342L6UCTW4 · pith_short_8: U6G6RU34

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/U6G6RU342L6UCTW4JFRAICKEJU \
  | 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: a78de8d37cd2fd414edc49620409444d3a623eb7c1ed4521f5cf36f86bdf19d1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "78804d5f0853094bc7935fe69c1276555018f013785787fb567ab69bafae95f7",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-12-21T00:18:33Z",
    "title_canon_sha256": "be7a1f0ef9ff2ca7dda39f15c2ad8e8f0c113ec2724ba1e2ba50d221419440fc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0512515",
    "kind": "arxiv",
    "version": 2
  }
}