Pith Number

pith:5BQY3XBJ

pith:2025:5BQY3XBJKDNLQEHY427IXOFEC6

not attested not anchored not stored refs pending

Spin Constraints on 4U 1630-47 via combined Continuum Fitting and Reflection methods: a comparative study using Frequentist and Bayesian statistics

Andrea Santangelo, Cosimo Bambi, Debtroy Das, Honghui Liu, Jiachen Jiang, Johannes Buchner, Menglei Zhou, Zuobin Zhang

arxiv:2509.09481 v1 · 2025-09-11 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5BQY3XBJKDNLQEHY427IXOFEC6}

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	2026-07-05T12:09:36.868916Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e8618ddc2950dab810f8e6be8bb8a41789b049684e45f1b9f2217deca13b77e0

Aliases

arxiv: 2509.09481 · arxiv_version: 2509.09481v1 · doi: 10.48550/arxiv.2509.09481 · pith_short_12: 5BQY3XBJKDNL · pith_short_16: 5BQY3XBJKDNLQEHY · pith_short_8: 5BQY3XBJ

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/5BQY3XBJKDNLQEHY427IXOFEC6 \
  | 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: e8618ddc2950dab810f8e6be8bb8a41789b049684e45f1b9f2217deca13b77e0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f8770ee6c8e4d43519a9a76a0d65dfcda31cb4d79462f14f2bd37e83006213e0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2025-09-11T14:09:55Z",
    "title_canon_sha256": "5ecf2fdd0b0bad942ea49efe33bb1be5aa3c6711dae10444024e3cab31c71c16"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2509.09481",
    "kind": "arxiv",
    "version": 1
  }
}