Pith Number

pith:WSA2SPDY

pith:2018:WSA2SPDY2V3ZQIXDLHTVKFFDPE

not attested not anchored not stored refs pending

The disc origin of the Milky Way bulge: Dissecting the chemo-morphological relations using N-body simulations and APOGEE

A. G\'omez, F. Combes, F. Fragkoudi, M. Haywood, M. Schultheis, P. Di Matteo, S Khoperskov

arxiv:1802.00453 v2 · 2018-02-01 · astro-ph.GA

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

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	2026-05-18T00:05:57.330291Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b481a93c78d5779822e359e75514a37934577b3b61a2ede37bbea893924d207c

Aliases

arxiv: 1802.00453 · arxiv_version: 1802.00453v2 · doi: 10.48550/arxiv.1802.00453 · pith_short_12: WSA2SPDY2V3Z · pith_short_16: WSA2SPDY2V3ZQIXD · pith_short_8: WSA2SPDY

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/WSA2SPDY2V3ZQIXDLHTVKFFDPE \
  | 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: b481a93c78d5779822e359e75514a37934577b3b61a2ede37bbea893924d207c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a0aea8825a40abd2b1b5072b45577aa6a9a8c652a2931d1d3cb8381a4571bdd7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-02-01T19:00:09Z",
    "title_canon_sha256": "c8b5d5c59e7b8abcebfa1b999ef8a5addd9bc15c530ca8836eaff11b49827cf5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.00453",
    "kind": "arxiv",
    "version": 2
  }
}