Pith Number

pith:4DOBH2EY

pith:2026:4DOBH2EY34TWM2PL4Z24RWDWRV

not attested not anchored not stored refs pending

FLAGS II: Constraining Galaxy Formation Models with Dimensionality Reduction of Direct Observables

Aswin P. Vijayan, Jack C. Turner, Stephen M. Wilkins, William J. Roper

arxiv:2608.12471 v1 · 2026-08-12 · 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{4DOBH2EY34TWM2PL4Z24RWDWRV}

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	2026-08-14T00:43:35.477391Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e0dc13e898df276669ebe675c8d8768d45c34f1d341b8d6e7ea447185f0b74c9

Aliases

arxiv: 2608.12471 · arxiv_version: 2608.12471v1 · doi: 10.48550/arxiv.2608.12471 · pith_short_12: 4DOBH2EY34TW · pith_short_16: 4DOBH2EY34TWM2PL · pith_short_8: 4DOBH2EY

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/4DOBH2EY34TWM2PL4Z24RWDWRV \
  | 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: e0dc13e898df276669ebe675c8d8768d45c34f1d341b8d6e7ea447185f0b74c9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fc0bdb9bc7e107d225a3047fb84b015b8b27860efb71ce37a93a1449579cc5d4",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2026-08-12T18:00:04Z",
    "title_canon_sha256": "0388593a3f6dff9f70186d17c95f0271e1ca36f96869634cd7764d5ab5b9a1d4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2608.12471",
    "kind": "arxiv",
    "version": 1
  }
}