Pith Number

pith:D2IGDZYE

pith:2009:D2IGDZYEFAJOLKQRGWNEOLEZV6

not attested not anchored not stored refs pending

Simultaneous observations of a pair of kilohertz QPOs and a plausible 1860 Hz QPO from an accreting neutron star system

India), Sudip Bhattacharyya (TIFR

arxiv:0911.5574 v1 · 2009-11-30 · astro-ph.HE · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{D2IGDZYEFAJOLKQRGWNEOLEZV6}

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	2026-05-18T02:34:03.083210Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1e9061e7042812e5aa11359a472c99afa7c5e807ec7cb44d1d8a4be9d6e055c9

Aliases

arxiv: 0911.5574 · arxiv_version: 0911.5574v1 · doi: 10.48550/arxiv.0911.5574 · pith_short_12: D2IGDZYEFAJO · pith_short_16: D2IGDZYEFAJOLKQR · pith_short_8: D2IGDZYE

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/D2IGDZYEFAJOLKQRGWNEOLEZV6 \
  | 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: 1e9061e7042812e5aa11359a472c99afa7c5e807ec7cb44d1d8a4be9d6e055c9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b05d7a6dca2f2e39cad63ddbade11b932189108cb0b057b442712e85292ab7c4",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-11-30T08:19:49Z",
    "title_canon_sha256": "ef9a83d4f3d4e20ca6d7b886627a2575a9a2b6b676547d1c88562e3d22d014dd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.5574",
    "kind": "arxiv",
    "version": 1
  }
}