Pith Number

pith:7F2G7UIH

pith:2009:7F2G7UIHGD3W2653IRHZZE6BDV

not attested not anchored not stored refs pending

On the evolution of anomalous X-ray pulsars and soft gamma ray repeaters with fallback disks

K.Y. Eksi, M.A. Alpar, M.H. Erkut, U. Ertan

arxiv:0907.3222 v1 · 2009-07-18 · 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{7F2G7UIHGD3W2653IRHZZE6BDV}

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	2026-05-18T02:12:55.867688Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f9746fd10730f76d7bbb444f9c93c11d5d1e7c470106438afcd8c63c49affca2

Aliases

arxiv: 0907.3222 · arxiv_version: 0907.3222v1 · doi: 10.48550/arxiv.0907.3222 · pith_short_12: 7F2G7UIHGD3W · pith_short_16: 7F2G7UIHGD3W2653 · pith_short_8: 7F2G7UIH

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/7F2G7UIHGD3W2653IRHZZE6BDV \
  | 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: f9746fd10730f76d7bbb444f9c93c11d5d1e7c470106438afcd8c63c49affca2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "128b36c00ef326ae1cc5e1af6fb2d0a6b369ce18136025f9ae3976f88456e61d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-07-18T14:49:32Z",
    "title_canon_sha256": "7674eb7f220f692e88dcc61378a9f1ef6e081719d611f9a4694cb50c6600373c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.3222",
    "kind": "arxiv",
    "version": 1
  }
}