Pith Number

pith:6BYDXF6K

pith:2025:6BYDXF6KWNFU33OBBFYQF7YKXS

not attested not anchored not stored refs pending

The Timing Evolution of the Magnetar Swift J1818.0-1607 During a Period of Reduced Activity

J. A. J. Alford, Joseph D. Gelfand, Moaz Abdelmaguid, Paulo C. C. Freire, Samayra Straal, Yogesh Maan

arxiv:2507.19698 v1 · 2025-07-25 · 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{6BYDXF6KWNFU33OBBFYQF7YKXS}

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	2026-07-05T11:43:39.532415Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f0703b97cab34b4dedc1097102ff0abc8a9c0a5f9ac2f92326659f935593fa73

Aliases

arxiv: 2507.19698 · arxiv_version: 2507.19698v1 · doi: 10.48550/arxiv.2507.19698 · pith_short_12: 6BYDXF6KWNFU · pith_short_16: 6BYDXF6KWNFU33OB · pith_short_8: 6BYDXF6K

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/6BYDXF6KWNFU33OBBFYQF7YKXS \
  | 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: f0703b97cab34b4dedc1097102ff0abc8a9c0a5f9ac2f92326659f935593fa73

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1e61f2fd65c455eb9f84823c26f22f3a34c195b332a8167068d846d2722f2a1d",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2025-07-25T22:33:26Z",
    "title_canon_sha256": "42ffe75f3ef2338a019559a4f26e7eee80de6b222155f012e742267d6536924a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.19698",
    "kind": "arxiv",
    "version": 1
  }
}