Pith Number

pith:QBJZGZAA

pith:2023:QBJZGZAAPPBFJOXYUYVQ4EPDLP

not attested not anchored not stored refs pending

Wet Compaction to a Blue Nugget: a Critical Phase in Galaxy Evolution

Avishai Dekel, Daniel Ceverino, Fangzhou Jiang, Joel Primack, Jonathan Freundlich, Michael Kretschmer, Omri Ginzburg, Sandro Tacchella, Sharon Lapiner

arxiv:2302.12234 v2 · 2023-02-23 · 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{QBJZGZAAPPBFJOXYUYVQ4EPDLP}

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	2026-07-05T06:57:21.537709Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80539364007bc254baf8a62b0e11e35bffda889eaed7dd5a8a1f0ba368fa75cd

Aliases

arxiv: 2302.12234 · arxiv_version: 2302.12234v2 · doi: 10.48550/arxiv.2302.12234 · pith_short_12: QBJZGZAAPPBF · pith_short_16: QBJZGZAAPPBFJOXY · pith_short_8: QBJZGZAA

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/QBJZGZAAPPBFJOXYUYVQ4EPDLP \
  | 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: 80539364007bc254baf8a62b0e11e35bffda889eaed7dd5a8a1f0ba368fa75cd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "807692592a00ca95fa29a81ced2b724d3ec53b192da27f65531561467b48c05f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2023-02-23T18:53:48Z",
    "title_canon_sha256": "a795b3e50d452cbe6309b50689e44f324fe663713bb5a995fc6b2297249ace80"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2302.12234",
    "kind": "arxiv",
    "version": 2
  }
}