Pith Number

pith:OYQOY4ED

pith:2016:OYQOY4EDEJM4Q6NBKUT3W6WER5

not attested not anchored not stored refs pending

Galaxy Zoo: Evidence for rapid, recent quenching within a population of AGN host galaxies

B. D. Simmons, C. J. Lintott, C. M. Urry, C. N. Cardamone, K. L. Masters, K. Schawinski, K. W. Willett, O. I. Wong, R. J. Smethurst, S. J. Kruk, S. P. Bamford

arxiv:1609.00023 v1 · 2016-08-31 · 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{OYQOY4EDEJM4Q6NBKUT3W6WER5}

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	2026-05-18T01:05:41.524921Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7620ec70832259c879a15527bb7ac48f7d06db207c01000d77434c6c0aea4fc1

Aliases

arxiv: 1609.00023 · arxiv_version: 1609.00023v1 · doi: 10.48550/arxiv.1609.00023 · pith_short_12: OYQOY4EDEJM4 · pith_short_16: OYQOY4EDEJM4Q6NB · pith_short_8: OYQOY4ED

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/OYQOY4EDEJM4Q6NBKUT3W6WER5 \
  | 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: 7620ec70832259c879a15527bb7ac48f7d06db207c01000d77434c6c0aea4fc1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8e1128e747d43e474348b714dfb8ccae46c72b4218b9e09757832fe77e3504cd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-08-31T20:02:44Z",
    "title_canon_sha256": "4d5b03c19511137075688aca5596dd917c19427c2f80ef29bdd3f6f91e003e88"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.00023",
    "kind": "arxiv",
    "version": 1
  }
}