Pith Number

pith:2ICDWHZ3

pith:2009:2ICDWHZ3ZYMLSV2DTPBS4UJMHV

not attested not anchored not stored refs pending

Less than 10 percent of star formation in z=0.6 massive galaxies is triggered by major interactions

Aday R. Robaina, Andy Taylor, Anna Gallazzi, Asmus Boehm, Boris Haussler, Casey Papovich, Catherine Heymans, Chien Y. Peng, Christian Wolf, Daniel H. McIntosh, David Bacon, Eelco van Kampen, Eric F. Bell, Fabio D. Barazza, Hans-Walter Rix, John A.R. Caldwell, Klaus Meisenheimer, Knud Jahnke, Kyle Lane, Lutz Wisotzki, Marco Barden, Meghan E. Gray, Michael Balogh, Rachel S. Somerville, Ramin Skibba, Rosalind E. Skelton, Sebastian F. Sanchez, Shardha Jogee, Xianzhong Zheng

arxiv:0907.3728 v1 · 2009-07-21 · 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{2ICDWHZ3ZYMLSV2DTPBS4UJMHV}

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	2026-05-18T02:12:54.932859Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d2043b1f3bce18b957439bc32e512c3d7be4be2d2a6e17f41f00d0eae7f6df0a

Aliases

arxiv: 0907.3728 · arxiv_version: 0907.3728v1 · doi: 10.48550/arxiv.0907.3728 · pith_short_12: 2ICDWHZ3ZYML · pith_short_16: 2ICDWHZ3ZYMLSV2D · pith_short_8: 2ICDWHZ3

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/2ICDWHZ3ZYMLSV2DTPBS4UJMHV \
  | 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: d2043b1f3bce18b957439bc32e512c3d7be4be2d2a6e17f41f00d0eae7f6df0a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fb57e534d53f2d911de8ba0be4653abd29d706977f7e171da3146aa851d1c458",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-07-21T20:21:07Z",
    "title_canon_sha256": "e7d3666e7f74cdbeaed665ed7e400790525555b0f9818ac21c61721727400aa2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.3728",
    "kind": "arxiv",
    "version": 1
  }
}