Pith Number

pith:TGRJKUX2

pith:2025:TGRJKUX2UBVERLDXBJ3IIQFVQK

not attested not anchored not stored refs pending

Neutron star envelopes with machine learning: a single-hidden-layer neural network application

D. De Grandis, K. Kovlakas, N. Rea

arxiv:2509.03090 v1 · 2025-09-03 · astro-ph.HE · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TGRJKUX2UBVERLDXBJ3IIQFVQK}

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	2026-07-05T12:04:03.915304Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

99a29552faa06a48ac770a768440b582ac9f93d7e9bc1ba65bae5e00ca81cc0b

Aliases

arxiv: 2509.03090 · arxiv_version: 2509.03090v1 · doi: 10.48550/arxiv.2509.03090 · pith_short_12: TGRJKUX2UBVE · pith_short_16: TGRJKUX2UBVERLDX · pith_short_8: TGRJKUX2

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/TGRJKUX2UBVERLDXBJ3IIQFVQK \
  | 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: 99a29552faa06a48ac770a768440b582ac9f93d7e9bc1ba65bae5e00ca81cc0b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c0df349a686297c7267c52f1600f72e3753c4c46313f74025ee8969c295b472a",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2025-09-03T07:38:30Z",
    "title_canon_sha256": "0381467e6a50c54b94527e402ee8af2ca915035d95d7e5f8c30b6bf58b12fe6c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2509.03090",
    "kind": "arxiv",
    "version": 1
  }
}