Pith Number

pith:JDQPTUQY

pith:2025:JDQPTUQYH6OBQDLCJLKQ2M7EBC

not attested not anchored not stored refs pending

Constraining the Cosmological Constant from Stellar Orbits Around Sgr A* Using Physics-Informed Neural Networks

Shinsei Eyama, Youhei Masada

arxiv:2508.19719 v1 · 2025-08-27 · astro-ph.CO · 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{JDQPTUQYH6OBQDLCJLKQ2M7EBC}

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	2026-07-05T12:00:16.971086Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

48e0f9d2183f9c180d624ad50d33e408b36d038cc5468c999710b3f463bb0bf5

Aliases

arxiv: 2508.19719 · arxiv_version: 2508.19719v1 · doi: 10.48550/arxiv.2508.19719 · pith_short_12: JDQPTUQYH6OB · pith_short_16: JDQPTUQYH6OBQDLC · pith_short_8: JDQPTUQY

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/JDQPTUQYH6OBQDLCJLKQ2M7EBC \
  | 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: 48e0f9d2183f9c180d624ad50d33e408b36d038cc5468c999710b3f463bb0bf5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "74ed89b3f5a8930ff577f260f29080063bf48b7268465f4dcedbbab56e4e358a",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2025-08-27T09:29:56Z",
    "title_canon_sha256": "b98954534674d48b802f5dc1fe84308b47fad1cdd8fb545e9778fa9218c00471"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.19719",
    "kind": "arxiv",
    "version": 1
  }
}