Pith Number

pith:4BS7DPQY

pith:2009:4BS7DPQYJYZSWB6DTDRNJZH7BA

not attested not anchored not stored refs pending

The Dead Sequence: A Clear Bimodality in Galaxy Colors from z=0 to z=2.5

A. Muzzin, D. Marchesini, G. B. Brammer, G. Illingworth, G. Rudnick, I. Labbe, K. E. Whitaker, K.-S. Lee, M. Franx, M. Kriek, P. G. van Dokkum, R. F. Quadri

arxiv:0910.2227 v1 · 2009-10-12 · 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{4BS7DPQYJYZSWB6DTDRNJZH7BA}

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	2026-05-18T02:34:19.202029Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e065f1be184e332b07c398e2d4e4ff082d522defba095dfcc5ccaf7f718d4914

Aliases

arxiv: 0910.2227 · arxiv_version: 0910.2227v1 · doi: 10.48550/arxiv.0910.2227 · pith_short_12: 4BS7DPQYJYZS · pith_short_16: 4BS7DPQYJYZSWB6D · pith_short_8: 4BS7DPQY

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/4BS7DPQYJYZSWB6DTDRNJZH7BA \
  | 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: e065f1be184e332b07c398e2d4e4ff082d522defba095dfcc5ccaf7f718d4914

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e5f5609293632b467d79bc4224ad688db916a5343b28f539d468a93a39dbbad0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-10-12T23:51:00Z",
    "title_canon_sha256": "ddd9c325472d3bfefbdf80d2c87bddc97a929ab4a85efe0d4078360456b35553"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.2227",
    "kind": "arxiv",
    "version": 1
  }
}