Pith Number

pith:UFBEHTC2

pith:2009:UFBEHTC2L72UUEVBWOSKFN2K5D

not attested not anchored not stored refs pending

Disk formation and the origin of clumpy galaxies at high redshift

Ben Moore, Oscar Agertz, Romain Teyssier

arxiv:0901.2536 v2 · 2009-01-16 · 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{UFBEHTC2L72UUEVBWOSKFN2K5D}

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	2026-05-18T02:14:57.125592Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a14243cc5a5ff54a12a1b3a4a2b74ae8e0d596c454b02ba8d3b808ecb93d9919

Aliases

arxiv: 0901.2536 · arxiv_version: 0901.2536v2 · doi: 10.48550/arxiv.0901.2536 · pith_short_12: UFBEHTC2L72U · pith_short_16: UFBEHTC2L72UUEVB · pith_short_8: UFBEHTC2

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/UFBEHTC2L72UUEVBWOSKFN2K5D \
  | 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: a14243cc5a5ff54a12a1b3a4a2b74ae8e0d596c454b02ba8d3b808ecb93d9919

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b8f188bc72ba419893f5a3c91dc08dc1b5fe42659231679a05bb482031a7b37",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-01-16T17:41:34Z",
    "title_canon_sha256": "59902232f3a3de09040b70eb964e7080be5f06061516656f3958e2090279ed61"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.2536",
    "kind": "arxiv",
    "version": 2
  }
}