Pith Number

pith:BPG32V3E

pith:2026:BPG32V3EXQ4A6O3A7OLB5JZZBQ

not attested not anchored not stored refs pending

Timing and spectral analysis of the 2025 outburst of 4U 1630$-$47 with \textit{NICER}

Haifan Zhu, Mariano M\'endez, Wei Wang, Xiao Chen

arxiv:2607.02228 v1 · 2026-07-02 · 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{BPG32V3EXQ4A6O3A7OLB5JZZBQ}

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	2026-07-03T01:17:45.825966Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0bcdbd5764bc380f3b60fb961ea7390c3fcb1e220006826d743f9b9b6501880e

Aliases

arxiv: 2607.02228 · arxiv_version: 2607.02228v1 · doi: 10.48550/arxiv.2607.02228 · pith_short_12: BPG32V3EXQ4A · pith_short_16: BPG32V3EXQ4A6O3A · pith_short_8: BPG32V3E

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/BPG32V3EXQ4A6O3A7OLB5JZZBQ \
  | 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: 0bcdbd5764bc380f3b60fb961ea7390c3fcb1e220006826d743f9b9b6501880e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b915e13a3f3d2d203d8557934d85ca6b23e90dfae512675edab9b9a90f1389ed",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2026-07-02T14:28:56Z",
    "title_canon_sha256": "66ce28c98afada7c781aa8decf038af74926bf68ec09c2f67923a914c97e40b8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.02228",
    "kind": "arxiv",
    "version": 1
  }
}