Pith Number

pith:5SOPQPXI

pith:2009:5SOPQPXIBRWBXNRCGPSQCYIJNV

not attested not anchored not stored refs pending

The X-ray Binary Analogy to the First AGN QPO

C. Done, M. Middleton

arxiv:0908.0224 v2 · 2009-08-03 · 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{5SOPQPXIBRWBXNRCGPSQCYIJNV}

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	2026-05-18T02:12:45.291371Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ec9cf83ee80c6c1bb62233e50161096d77bf8060678cc4fe89daec8d169076e7

Aliases

arxiv: 0908.0224 · arxiv_version: 0908.0224v2 · doi: 10.48550/arxiv.0908.0224 · pith_short_12: 5SOPQPXIBRWB · pith_short_16: 5SOPQPXIBRWBXNRC · pith_short_8: 5SOPQPXI

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/5SOPQPXIBRWBXNRCGPSQCYIJNV \
  | 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: ec9cf83ee80c6c1bb62233e50161096d77bf8060678cc4fe89daec8d169076e7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6f37a4befe9b6415c53aa499a24f196f40e50daa7c858c306109facec18b9894",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-08-03T14:49:30Z",
    "title_canon_sha256": "b68530ce055433791d53461c55542ae26f5c4ee8e1c1ba59d1f9e8d995aba830"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.0224",
    "kind": "arxiv",
    "version": 2
  }
}