Pith Number

pith:FBX5DWER

pith:2009:FBX5DWERNTEFU5AWSY6QL6N44L

not attested not anchored not stored refs pending

Galaxies in a Simulated $\Lambda$CDM Universe II: Observable Properties and Constraints on Feedback

(2) UMASS, (3) U. of Arizona, (4) Ohio-State), David H. Weinberg (4) ((1) Harvard/CFA, Du\v{s}an Kere\v{s} (1), Mark Fardal (2), Neal Katz (2), Romeel Dave (3)

arxiv:0901.1880 v2 · 2009-01-13 · 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{FBX5DWERNTEFU5AWSY6QL6N44L}

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	2026-05-18T02:15:02.446336Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

286fd1d8916cc85a7416963d05f9bce2e3f45fd3895a330980d99c6ad528e1e1

Aliases

arxiv: 0901.1880 · arxiv_version: 0901.1880v2 · doi: 10.48550/arxiv.0901.1880 · pith_short_12: FBX5DWERNTEF · pith_short_16: FBX5DWERNTEFU5AW · pith_short_8: FBX5DWER

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/FBX5DWERNTEFU5AWSY6QL6N44L \
  | 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: 286fd1d8916cc85a7416963d05f9bce2e3f45fd3895a330980d99c6ad528e1e1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f1962925df26d976e740f7c9a19b11b4f5943180461d17ed7b4bafe9322c15e6",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-01-13T21:00:44Z",
    "title_canon_sha256": "f6ce6d4f843d4fc8a0fd90019852661c53bddd705a98dd0b30c9e959c4c708db"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.1880",
    "kind": "arxiv",
    "version": 2
  }
}