Pith Number

pith:4KYAVBD4

pith:2009:4KYAVBD43OQFKCSLMV6RZRSUVZ

not attested not anchored not stored refs pending

The Twin Magnetars: SGR 1627-41 and 1E 1547-5408

A. De Luca, A. Tiengo, A. von Kienlin, D. Gotz, G.L. Israel, G. Vianello, G. Weidenspointner, L. Stella, N. Rea, P. Esposito, R. Turolla, S. Mereghetti, S. Zane

arxiv:0908.0414 v1 · 2009-08-04 · 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{4KYAVBD43OQFKCSLMV6RZRSUVZ}

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	2026-07-04T15:47:25.817913Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e2b00a847cdba0550a4b657d1cc654ae5571b71472648b0827619c6bc95fe48b

Aliases

arxiv: 0908.0414 · arxiv_version: 0908.0414v1 · doi: 10.48550/arxiv.0908.0414 · pith_short_12: 4KYAVBD43OQF · pith_short_16: 4KYAVBD43OQFKCSL · pith_short_8: 4KYAVBD4

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/4KYAVBD43OQFKCSLMV6RZRSUVZ \
  | 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: e2b00a847cdba0550a4b657d1cc654ae5571b71472648b0827619c6bc95fe48b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2fefdad2a2a14e2e04d4e44de44d20b46e84c5a02f118c3c8a065dccf1c3970c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-08-04T09:27:28Z",
    "title_canon_sha256": "2c615d88a143e0050bc9f925d929702218955f1964cba45df30409618f6071cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.0414",
    "kind": "arxiv",
    "version": 1
  }
}