Pith Number

pith:ED4FC7T7

pith:2009:ED4FC7T7M6ZEQQJK6MJE7PNGNQ

not attested not anchored not stored refs pending

QPO emission from moving hot spots on the surface of neutron stars: a model

(2) Cornell University, (3) Universit\`a degli Studi di Palermo), Akshay Kulkarni (2), Luciano Burderi (1), Marina Romanova (2), Matteo Bachetti (1), Tiziana di Salvo (3) ((1) Universit\`a degli Studi di Cagliari

arxiv:0911.4493 v3 · 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{ED4FC7T7M6ZEQQJK6MJE7PNGNQ}

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	2026-05-18T04:37:10.504220Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

20f8517e7f67b248412af3124fbda66c0c428ed20b663815d9850d602addf165

Aliases

arxiv: 0911.4493 · arxiv_version: 0911.4493v3 · doi: 10.48550/arxiv.0911.4493 · pith_short_12: ED4FC7T7M6ZE · pith_short_16: ED4FC7T7M6ZEQQJK · pith_short_8: ED4FC7T7

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/ED4FC7T7M6ZEQQJK6MJE7PNGNQ \
  | 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: 20f8517e7f67b248412af3124fbda66c0c428ed20b663815d9850d602addf165

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ed8834b36ff80d2bbe8171e6d8f1918a8c26587a6a51255c84e2b63ce0ff1500",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-11-24T08:38:10Z",
    "title_canon_sha256": "0f0269f9150938b9e140783d19591706adaa84ac1a939d57b5c75a6481a5181f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.4493",
    "kind": "arxiv",
    "version": 3
  }
}