Pith Number

pith:YW2HCAJI

pith:2009:YW2HCAJIJLSROV4ZEKUZFJUB2L

not attested not anchored not stored refs pending

The host galaxy of a narrow-line Seyfert 1 galaxy RE J1034+396 with X-ray quasi-periodic oscillations

Kai Huang, Wei-Hao Bian

arxiv:0909.1078 v1 · 2009-09-06 · astro-ph.CO · 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{YW2HCAJIJLSROV4ZEKUZFJUB2L}

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	2026-05-18T02:11:59.389098Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c5b47101284ae517579922a992a681d2da7be160a2e08decbb0d014e36a739bb

Aliases

arxiv: 0909.1078 · arxiv_version: 0909.1078v1 · doi: 10.48550/arxiv.0909.1078 · pith_short_12: YW2HCAJIJLSR · pith_short_16: YW2HCAJIJLSROV4Z · pith_short_8: YW2HCAJI

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/YW2HCAJIJLSROV4ZEKUZFJUB2L \
  | 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: c5b47101284ae517579922a992a681d2da7be160a2e08decbb0d014e36a739bb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "09207c47773dd27142767125796696aa71e57a97bbf3eba805bf1d3f2aca5092",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-09-06T13:17:20Z",
    "title_canon_sha256": "0c4e2d1760cd24127820a83161b58953d53fe823816a8cf7be4080fe5f32e516"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.1078",
    "kind": "arxiv",
    "version": 1
  }
}