Pith Number

pith:EY57PXZ7

pith:2020:EY57PXZ7ZCI7PSA4VITIBBRY5T

not attested not anchored not stored refs pending

A Precise Benchmark for Cluster Scaling Relations: Fundamental Plane, Mass Plane and IMF in the Coma Cluster from Dynamical Models

Chiaki Kobayashi, Davor Krajnovic, Michele Cappellari, P. T. de Zeeuw, Richard M. McDermid, Roger L. Davies, Shravan Shetty

arxiv:2004.07449 v1 · 2020-04-16 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EY57PXZ7ZCI7PSA4VITIBBRY5T}

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	2026-07-05T00:59:36.517298Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

263bf7df3fc891f7c81caa26808638ecc88dd3f9e587c0ddae4e60a36ea2f531

Aliases

arxiv: 2004.07449 · arxiv_version: 2004.07449v1 · doi: 10.48550/arxiv.2004.07449 · pith_short_12: EY57PXZ7ZCI7 · pith_short_16: EY57PXZ7ZCI7PSA4 · pith_short_8: EY57PXZ7

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/EY57PXZ7ZCI7PSA4VITIBBRY5T \
  | 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: 263bf7df3fc891f7c81caa26808638ecc88dd3f9e587c0ddae4e60a36ea2f531

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dff4b20f160b7b43a3ff64c7480ce494d2201aab39a26ab27f7604b8c69a334a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2020-04-16T04:14:47Z",
    "title_canon_sha256": "f9bfb1a9c4a556c2c3b49077eb7d2071d44e54503d864761f5e5200916a33ed8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.07449",
    "kind": "arxiv",
    "version": 1
  }
}