Pith Number

pith:MXVSRVZQ

pith:2023:MXVSRVZQB7APHAOMURBV45F2MD

not attested not anchored not stored refs pending

$H_0$ Tension on the Light of Supermassive Black Hole Shadows Data

Celia Escamilla-Rivera, Rub\'en Torres Castillejos

arxiv:2301.00490 v1 · 2023-01-02 · astro-ph.CO · 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{MXVSRVZQB7APHAOMURBV45F2MD}

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	2026-07-05T05:32:02.891366Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

65eb28d7300fc0f381cca4435e74ba60edb4d109dce0a8cc9bd4a6f1f37eda42

Aliases

arxiv: 2301.00490 · arxiv_version: 2301.00490v1 · doi: 10.48550/arxiv.2301.00490 · pith_short_12: MXVSRVZQB7AP · pith_short_16: MXVSRVZQB7APHAOM · pith_short_8: MXVSRVZQ

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/MXVSRVZQB7APHAOMURBV45F2MD \
  | 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: 65eb28d7300fc0f381cca4435e74ba60edb4d109dce0a8cc9bd4a6f1f37eda42

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ad894375a9342409b5749335b71f68a21eb7ab5e0513f488635c5f7503a89c29",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2023-01-02T00:13:01Z",
    "title_canon_sha256": "59a40b8370ee73e2bbd94002c28568a7bbae09083f804c0bf65e59b3fc4bf03c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2301.00490",
    "kind": "arxiv",
    "version": 1
  }
}