Pith Number

pith:AMGAMZBX

pith:2001:AMGAMZBXLUCCMFZNZCN7RKHWEP

not attested not anchored not stored refs pending

On the "initial" Angular Momentum of Galaxies

CfA), Lars Hernquist (Harvard, Rupert C. Croft, Tom Abel

arxiv:astro-ph/0111046 v1 · 2001-11-02 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AMGAMZBXLUCCMFZNZCN7RKHWEP}

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	2026-05-18T00:37:32.622668Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

030c0664375d0426172dc89bf8a8f623d9cc483880f2354eca05d35e66419072

Aliases

arxiv: astro-ph/0111046 · arxiv_version: astro-ph/0111046v1 · doi: 10.48550/arxiv.astro-ph/0111046 · pith_short_12: AMGAMZBXLUCC · pith_short_16: AMGAMZBXLUCCMFZN · pith_short_8: AMGAMZBX

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/AMGAMZBXLUCCMFZNZCN7RKHWEP \
  | 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: 030c0664375d0426172dc89bf8a8f623d9cc483880f2354eca05d35e66419072

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "81df7a277075ddaefa01cc1bb056864d4a1f5d75c360b1a276889fdc2eb36a44",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-11-02T15:15:30Z",
    "title_canon_sha256": "07337295139776214161ad863bc80bc1c8045b5046dc20f9ef008d320c46104b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0111046",
    "kind": "arxiv",
    "version": 1
  }
}