Pith Number

pith:U2FWJHCZ

pith:2009:U2FWJHCZV5K4HPLGW7KPB75LTH

not attested not anchored not stored refs pending

The Effect of Gas Fraction on the Morphology and Time-scales of Disc Galaxy Mergers

Jennifer M. Lotz (NOAO), Joel R. Primack (UCSC), Patrik Jonsson (UCSC), T.J. Cox (Harvard-Smithsonian Center for Astrophysics)

arxiv:0912.1593 v1 · 2009-12-08 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U2FWJHCZV5K4HPLGW7KPB75LTH}

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	2026-05-18T02:10:25.555381Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a68b649c59af55c3bd66b7d4f0ffab99f2b8779ad52b1e2152a1f854298b09ec

Aliases

arxiv: 0912.1593 · arxiv_version: 0912.1593v1 · doi: 10.48550/arxiv.0912.1593 · pith_short_12: U2FWJHCZV5K4 · pith_short_16: U2FWJHCZV5K4HPLG · pith_short_8: U2FWJHCZ

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/U2FWJHCZV5K4HPLGW7KPB75LTH \
  | 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: a68b649c59af55c3bd66b7d4f0ffab99f2b8779ad52b1e2152a1f854298b09ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fa1df15e9c8a4072c6df0ba3af3508a8246e4069a5b992068493ec98cf02372d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-12-08T21:00:15Z",
    "title_canon_sha256": "5857030e2e456d39ce2bea9bc130d3bfda4555fb6249addd7d6aea692d3b9010"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.1593",
    "kind": "arxiv",
    "version": 1
  }
}