Pith Number

pith:MG7Z4WF7

pith:2015:MG7Z4WF72RTU4YT7ZWX6REIBAB

not attested not anchored not stored refs pending

The small and the beautiful: How the star formation law affects galactic disk structure

Harald Braun, Wolfram Schmidt

arxiv:1507.04184 v2 · 2015-07-15 · astro-ph.GA · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MG7Z4WF72RTU4YT7ZWX6REIBAB}

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	2026-05-18T00:48:47.564996Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

61bf9e58bfd4674e627fcdafe891010076881d717e78de53e0e46fcf64ac6dbb

Aliases

arxiv: 1507.04184 · arxiv_version: 1507.04184v2 · doi: 10.48550/arxiv.1507.04184 · pith_short_12: MG7Z4WF72RTU · pith_short_16: MG7Z4WF72RTU4YT7 · pith_short_8: MG7Z4WF7

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/MG7Z4WF72RTU4YT7ZWX6REIBAB \
  | 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: 61bf9e58bfd4674e627fcdafe891010076881d717e78de53e0e46fcf64ac6dbb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cd7e3e737503195690de0570e35606e86b94ea5d58c60c4d369d568412316f51",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-07-15T12:22:26Z",
    "title_canon_sha256": "38da9997a0c14c4032efcf936444a7e86cc5d9bdd12136ec30044c742f9597c1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.04184",
    "kind": "arxiv",
    "version": 2
  }
}