Pith Number

pith:4T3QM6WM

pith:2008:4T3QM6WMH2BVLXWISAMSXHZWJZ

not attested not anchored not stored refs pending

The mid-infrared colour-magnitude relation of early-type galaxies in the Coma cluster as measured by Spitzer-IRS

A. Bressan, G.L. Granato, L. Buson, L. Silva, M.S. Clemens, P. Panuzzo, R. Rampazzo

arxiv:0808.2899 v2 · 2008-08-21 · 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{4T3QM6WMH2BVLXWISAMSXHZWJZ}

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	2026-07-04T17:12:25.830937Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e4f7067acc3e8355dec890192b9f364e79092816f43f81b3680b1f52f61eedd5

Aliases

arxiv: 0808.2899 · arxiv_version: 0808.2899v2 · doi: 10.48550/arxiv.0808.2899 · pith_short_12: 4T3QM6WMH2BV · pith_short_16: 4T3QM6WMH2BVLXWI · pith_short_8: 4T3QM6WM

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/4T3QM6WMH2BVLXWISAMSXHZWJZ \
  | 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: e4f7067acc3e8355dec890192b9f364e79092816f43f81b3680b1f52f61eedd5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "04d4958dcb725b60086161703db5d0e313b2440a4f3b350534581b6faae00c77",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-08-21T10:54:58Z",
    "title_canon_sha256": "4b53b740573d4774148e4a338d41da3777137a389a53ff6298b18c878b51b4fe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0808.2899",
    "kind": "arxiv",
    "version": 2
  }
}