Pith Number

pith:7ILK7WVP

pith:2009:7ILK7WVPNM4PSWLOSFZ5LYSPSE

not attested not anchored not stored refs pending

Magnetar Twists: Fermi/Gamma ray Burst Monitor (GBM) detection of SGR J1550-5418

A.J. van der Horst, A.L. Watts, A. Pe'er, A. von Kienlin, C.A. Wilson-Hodge, C. Kouveliotou, E. Gogus, E. Ramirez-Ruiz, J. Granot, M.H. Finger, M. van der Klis, N. Gehrels, P.M. Woods, S. Wachter, Y. Kaneko

arxiv:0911.4636 v2 · 2009-11-24 · 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{7ILK7WVPNM4PSWLOSFZ5LYSPSE}

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	2026-05-18T02:34:03.787814Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa16afdaaf6b38f9596e9173d5e24f9126e0d9435c7b2d573fcd8fbabd5d4192

Aliases

arxiv: 0911.4636 · arxiv_version: 0911.4636v2 · doi: 10.48550/arxiv.0911.4636 · pith_short_12: 7ILK7WVPNM4P · pith_short_16: 7ILK7WVPNM4PSWLO · pith_short_8: 7ILK7WVP

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/7ILK7WVPNM4PSWLOSFZ5LYSPSE \
  | 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: fa16afdaaf6b38f9596e9173d5e24f9126e0d9435c7b2d573fcd8fbabd5d4192

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1b8ce65e42cfb7e193a3ff6ead1d01325ae8088898f1b3b0af731011d1f3014d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-11-24T14:42:11Z",
    "title_canon_sha256": "5a31253b1b488bd0923a9541ea6f010f0f282320e979277e1f4e9440cbcdabd3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.4636",
    "kind": "arxiv",
    "version": 2
  }
}