Pith Number

pith:MRY2Z2ES

pith:2012:MRY2Z2ESJ2VZ7IFRBTAVCGVTCL

not attested not anchored not stored refs pending

The M - \sigma relation in different environments

Andrew R. King, Kastytis Zubovas

arxiv:1208.1380 v1 · 2012-08-07 · astro-ph.GA · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MRY2Z2ESJ2VZ7IFRBTAVCGVTCL}

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	2026-05-18T01:55:22.259894Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6471ace8924eab9fa0b10cc1511ab312ff5c832a4b410375d2ee2e82997959c9

Aliases

arxiv: 1208.1380 · arxiv_version: 1208.1380v1 · doi: 10.48550/arxiv.1208.1380 · pith_short_12: MRY2Z2ESJ2VZ · pith_short_16: MRY2Z2ESJ2VZ7IFR · pith_short_8: MRY2Z2ES

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/MRY2Z2ESJ2VZ7IFRBTAVCGVTCL \
  | 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: 6471ace8924eab9fa0b10cc1511ab312ff5c832a4b410375d2ee2e82997959c9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5185ad15d767215c65a4478c9900fc3de611557650883433e2f2506df99aed5c",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-08-07T09:30:02Z",
    "title_canon_sha256": "df166e0fe971ccea550070627941a3fc7232334b46ec0cf32942ab00899af33d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.1380",
    "kind": "arxiv",
    "version": 1
  }
}