Pith Number

pith:RZQQ4WHK

pith:2019:RZQQ4WHKCNOVA53SYRYS4MWQYU

not attested not anchored not stored refs pending

Analytical model for the dynamical motion of the bulges of two interacting galaxies

Elkin L. L\'opez, Gustavo V. L\'opez, Simon N. Kemp

arxiv:1902.05949 v1 · 2019-02-15 · 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{RZQQ4WHKCNOVA53SYRYS4MWQYU}

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	2026-05-17T23:53:49.137455Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8e610e58ea135d507772c4712e32d0c5290c1223589a1829a3f2cb269d228465

Aliases

arxiv: 1902.05949 · arxiv_version: 1902.05949v1 · doi: 10.48550/arxiv.1902.05949 · pith_short_12: RZQQ4WHKCNOV · pith_short_16: RZQQ4WHKCNOVA53S · pith_short_8: RZQQ4WHK

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/RZQQ4WHKCNOVA53SYRYS4MWQYU \
  | 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: 8e610e58ea135d507772c4712e32d0c5290c1223589a1829a3f2cb269d228465

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8cdb28376bad815a947963b1b79e5871b9bc0e557cb9c133d8d0d836bd141f36",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-02-15T17:59:43Z",
    "title_canon_sha256": "075281f772b5182558a7f1daa105fefdcdc7e28654819e539d2f06b90de28b96"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.05949",
    "kind": "arxiv",
    "version": 1
  }
}