Pith Number

pith:P3RG6IZ6

pith:2025:P3RG6IZ6ZXYGLZE3EKQGJNTLE3

not attested not anchored not stored refs pending

Rapid Spectral Evolution of SGR 1935+2154 During its 2022 Outburst

Alex Van Kooten, Chin-Ping Hu, Chryssa Kouveliotou, George A. Younes, Marlon L. Bause, Matthew G. Baring, Rachael Stewart, Sebastien Guillot, Teruaki Enoto, Tolga Guver, Wynn C. G. Ho, Zorawar Wadiasingh

arxiv:2504.21615 v2 · 2025-04-30 · 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{P3RG6IZ6ZXYGLZE3EKQGJNTLE3}

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	2026-07-05T11:29:58.749215Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ee26f233ecdf065e49b22a064b66b26c796fa4b99da5debc25ca784c44415e3

Aliases

arxiv: 2504.21615 · arxiv_version: 2504.21615v2 · doi: 10.48550/arxiv.2504.21615 · pith_short_12: P3RG6IZ6ZXYG · pith_short_16: P3RG6IZ6ZXYGLZE3 · pith_short_8: P3RG6IZ6

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/P3RG6IZ6ZXYGLZE3EKQGJNTLE3 \
  | 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: 7ee26f233ecdf065e49b22a064b66b26c796fa4b99da5debc25ca784c44415e3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6437718c0e394d37bfc2f41f0d501a898e62554de9bdfa8858bbf8b61e43ad56",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2025-04-30T13:11:08Z",
    "title_canon_sha256": "aa03d31a1a72d49271c5ffd9a8e61c79dfc16520db9f4dcf0eb676f2cca8338a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.21615",
    "kind": "arxiv",
    "version": 2
  }
}