Pith Number

pith:MMGWODIT

pith:2018:MMGWODITDBNBR4VBCMRX24DVRW

not attested not anchored not stored refs pending

New perspectives on galactic angular momentum, galaxy formation, and the Hubble Sequence

Aaron J. Romanowsky, S. Michael Fall

arxiv:1812.06144 v1 · 2018-12-14 · 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{MMGWODITDBNBR4VBCMRX24DVRW}

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	2026-05-17T23:58:13.063572Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

630d670d13185a18f2a113237d70758da4e75fffc7f1021906512d3476e9136f

Aliases

arxiv: 1812.06144 · arxiv_version: 1812.06144v1 · doi: 10.48550/arxiv.1812.06144 · pith_short_12: MMGWODITDBNB · pith_short_16: MMGWODITDBNBR4VB · pith_short_8: MMGWODIT

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/MMGWODITDBNBR4VBCMRX24DVRW \
  | 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: 630d670d13185a18f2a113237d70758da4e75fffc7f1021906512d3476e9136f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f2b8e0a047623bcfb1f16be2a8eb376375662a3762fe9a6d7697778fea0f4395",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-12-14T20:07:30Z",
    "title_canon_sha256": "7cfc18268bf65913d7ab5d0b61483b6749bd0facb9a580f7c44e5f7fb0282f77"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.06144",
    "kind": "arxiv",
    "version": 1
  }
}