Pith Number

pith:QDP7D3PJ

pith:2015:QDP7D3PJ5JTVUITNWRTZOPLJ7N

not attested not anchored not stored refs pending

The evolution of disc galaxies with and without classical bulges since z~1

Dimitri A. Gadotti, Harinder P. Singh, Kanak Saha, Sonali Sachdeva

arxiv:1504.06218 v1 · 2015-04-23 · 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{QDP7D3PJ5JTVUITNWRTZOPLJ7N}

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	2026-05-18T02:03:47.982547Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80dff1ede9ea675a226db467973d69fb52b02f2a6f022518b84f51286c1fa1fc

Aliases

arxiv: 1504.06218 · arxiv_version: 1504.06218v1 · doi: 10.48550/arxiv.1504.06218 · pith_short_12: QDP7D3PJ5JTV · pith_short_16: QDP7D3PJ5JTVUITN · pith_short_8: QDP7D3PJ

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/QDP7D3PJ5JTVUITNWRTZOPLJ7N \
  | 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: 80dff1ede9ea675a226db467973d69fb52b02f2a6f022518b84f51286c1fa1fc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b52c0d02d9c450bed351716050fe771814f74a3de34c41aff93e1c5754269ac2",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-04-23T15:20:27Z",
    "title_canon_sha256": "b55fdd71d3aca3700d624cdd7fb2c8d183b9f07ec05a7613cef415e4bd9e7110"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.06218",
    "kind": "arxiv",
    "version": 1
  }
}