Pith Number

pith:C4CFWCY5

pith:2026:C4CFWCY5OAVZJDKJTQ5YGFLSBV

not attested not anchored not stored refs pending

Reconstructing chemical enrichment pathways in disc galaxies: A phylogenetic approach

\'Alvaro M\'arquez S., \'Alvaro Rojas-Arriagada, Brian Tapia-Contreras, Claudia Aguilera-G\'omez, Emanuel Sillero, Francisco Jara-Ferreira, Keaghan Yaxley, Patricia B. Tissera, Paula Jofr\'e, Payel Das, Robert A. Foley, Robert M. Yates, Theosamuele Signor, Xia Hua

Phylogenetic trees built from stellar chemical abundances reveal distinct enrichment histories in inner and outer regions of a simulated disc galaxy.

arxiv:2604.11974 v2 · 2026-04-13 · astro-ph.GA

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Add to your LaTeX paper

\usepackage{pith}
\pithnumber{C4CFWCY5OAVZJDKJTQ5YGFLSBV}

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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.

Claims

C1strongest claim

Galactic phylogenetics provides a novel and complementary tool to decode the fossil record of galaxies.

C2weakest assumption

That phylogenetic trees constructed from chemical abundances in the simulation accurately reflect real enrichment pathways and assembly histories rather than simulation-specific artifacts.

C3one line summary

Phylogenetic trees from stellar chemical abundances in a simulated disc galaxy reveal distinct structures in inner versus outer regions, indicating rapid early enrichment inside and smoother gradients outside.

Receipt and verification

First computed	2026-06-11T01:09:35.426146Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

17045b0b1d702b948d499c3b8315720d6edeb79c623d6fadfd1903182b13f7e7

Aliases

arxiv: 2604.11974 · arxiv_version: 2604.11974v2 · doi: 10.48550/arxiv.2604.11974 · pith_short_12: C4CFWCY5OAVZ · pith_short_16: C4CFWCY5OAVZJDKJ · pith_short_8: C4CFWCY5

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/C4CFWCY5OAVZJDKJTQ5YGFLSBV \
  | 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: 17045b0b1d702b948d499c3b8315720d6edeb79c623d6fadfd1903182b13f7e7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c549eb80de03fbce948d454baab646dcf946dce4c3e1c69d889f9ba11eaf2a95",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2026-04-13T19:07:55Z",
    "title_canon_sha256": "ab53a96330575e0bc4cfbcff2637f37119813e13548f8865c04c7597840ea987"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2604.11974",
    "kind": "arxiv",
    "version": 2
  }
}