Pith Number

pith:2PTAJDN2

pith:2017:2PTAJDN24EVDW7H7FQ4HKSRYYO

not attested not anchored not stored refs pending

The structural evolution of galaxies with both thin and thick discs

James Binney, Michael Aumer

arxiv:1705.09240 v2 · 2017-05-25 · 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{2PTAJDN24EVDW7H7FQ4HKSRYYO}

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	2026-05-18T00:42:28.470275Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3e6048dbae12a3b7cff2c38754a38c39f0fe6a2c64194288c5dcba1b74afc69

Aliases

arxiv: 1705.09240 · arxiv_version: 1705.09240v2 · doi: 10.48550/arxiv.1705.09240 · pith_short_12: 2PTAJDN24EVD · pith_short_16: 2PTAJDN24EVDW7H7 · pith_short_8: 2PTAJDN2

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/2PTAJDN24EVDW7H7FQ4HKSRYYO \
  | 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: d3e6048dbae12a3b7cff2c38754a38c39f0fe6a2c64194288c5dcba1b74afc69

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5f0a5e896cfb5f8d3f12f0170f5b5756eef1a67ae7b91742ead35cd5ea476a74",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-05-25T15:56:41Z",
    "title_canon_sha256": "ae879d7dfbbdc7d4b2a93b394a92f8d689d7d5b0a5c2a2302267b0e127e57b46"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.09240",
    "kind": "arxiv",
    "version": 2
  }
}