Pith Number

pith:5LZB4BEG

pith:2018:5LZB4BEG53XCJMPUWNKJRTZQVS

not attested not anchored not stored refs pending

The Causes of the Red Sequence, the Blue Cloud, the Green Valley and the Green Mountain

Aaron Robotham, Benne Holwerda, Christopher Clark, Cristina Furlanetto, Dan Smith, David Clements, Elisabetta Valiante, Jon Loveday, Lerothodi Leeuw, Loretta Dunne, L.S. Kelvin, Maarten Baes, Malcolm Bremer, Maritza Lara-Lopez, Matthew Smith, Michael J.L. Brown, Michal J. Michalowski, Nathan Bourne, Paul der Werf, Pieter De Vis, R.J. Ivison, Simon Driver, Simon Dye, Stephen Eales, Steve Maddox, Steven Phillipps

arxiv:1809.01171 v1 · 2018-09-04 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5LZB4BEG53XCJMPUWNKJRTZQVS}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T00:06:00.776966Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eaf21e0486eeee24b1f4b35498cf30ac8e43876ea52a70231c0566f9fc762e5d

Aliases

arxiv: 1809.01171 · arxiv_version: 1809.01171v1 · doi: 10.48550/arxiv.1809.01171 · pith_short_12: 5LZB4BEG53XC · pith_short_16: 5LZB4BEG53XCJMPU · pith_short_8: 5LZB4BEG

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/5LZB4BEG53XCJMPUWNKJRTZQVS \
  | 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: eaf21e0486eeee24b1f4b35498cf30ac8e43876ea52a70231c0566f9fc762e5d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "92c4aa4347dd7cc6643550c47d69bd6defe60160c354168cb89198dd3f2450bc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-09-04T18:01:05Z",
    "title_canon_sha256": "0b1bf021488a434859f15c05e7c27e374bfac417747a85e7d4a0cdc090b3a269"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.01171",
    "kind": "arxiv",
    "version": 1
  }
}