Pith Number

pith:VJKHAO5N

pith:2013:VJKHAO5NZTN33Q7DKSATII7PYC

not attested not anchored not stored refs pending

Angular Momentum and Galaxy Formation Revisited: Effects of Variable Mass-to-light Ratios

Aaron J. Romanowsky, S. Michael Fall

arxiv:1305.1626 v1 · 2013-05-07 · 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{VJKHAO5NZTN33Q7DKSATII7PYC}

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	2026-05-18T01:50:05.027435Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aa54703badccdbbdc3e354813423efc09ff82e178d456a27f394ee0e1b60fbc8

Aliases

arxiv: 1305.1626 · arxiv_version: 1305.1626v1 · doi: 10.48550/arxiv.1305.1626 · pith_short_12: VJKHAO5NZTN3 · pith_short_16: VJKHAO5NZTN33Q7D · pith_short_8: VJKHAO5N

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/VJKHAO5NZTN33Q7DKSATII7PYC \
  | 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: aa54703badccdbbdc3e354813423efc09ff82e178d456a27f394ee0e1b60fbc8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aff70c95dbfbd9c5be36737bf855d0d38a5eff3919d25865beed1e5bb5e4b1ee",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-05-07T20:00:06Z",
    "title_canon_sha256": "64be21f5d2d80953aec8da281148f3946e05a955c3a85dab3df72b590f3d09fb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.1626",
    "kind": "arxiv",
    "version": 1
  }
}