Pith Number

pith:4UYXB2SD

pith:2009:4UYXB2SDDPHFCLFSM3DXTTG46Z

not attested not anchored not stored refs pending

Feedback and Recycled Wind Accretion: Assembling the z=0 Galaxy Mass Function

Benjamin D. Oppenheimer, David H. Weinberg, Du\v{s}an Kere\v{s}, Juna A. Kollmeier, Mark Fardal, Neal Katz, Romeel Dav\'e

arxiv:0912.0519 v2 · 2009-12-02 · astro-ph.CO · 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{4UYXB2SDDPHFCLFSM3DXTTG46Z}

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	2026-05-18T02:10:34.471717Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e53170ea431bce512cb266c779ccdcf64e56bedcda028992b9525afaf003c6f8

Aliases

arxiv: 0912.0519 · arxiv_version: 0912.0519v2 · doi: 10.48550/arxiv.0912.0519 · pith_short_12: 4UYXB2SDDPHF · pith_short_16: 4UYXB2SDDPHFCLFS · pith_short_8: 4UYXB2SD

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/4UYXB2SDDPHFCLFSM3DXTTG46Z \
  | 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: e53170ea431bce512cb266c779ccdcf64e56bedcda028992b9525afaf003c6f8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eb3806f5ea1cb44cbdc5ab652c68ca3e9dc51102dd462a4b26b462ff58a983f9",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-12-02T21:17:56Z",
    "title_canon_sha256": "d13f086a2ea8ba71153f0b7e9e44c428658c5af7259711996f7fcdd226c26002"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.0519",
    "kind": "arxiv",
    "version": 2
  }
}