Pith Number

pith:IGYOXRJ3

pith:2008:IGYOXRJ34XQXKDDJ7A7KLZCY4W

not attested not anchored not stored refs pending

Origin of the X-ray Emission in the Nuclei of FR Is

2), China), Chinese Academy of Sciences, Daejeon, Feng Yuan (2), Korean Astronomy, Qingwen Wu (1, Republic of Korean;(2)Shanghai Astronomical Observatory, Shanghai, Space Science Institute, Xinwu Cao (2) ((1)International Center for Astrophysics

arxiv:0809.2829 v1 · 2008-09-17 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IGYOXRJ34XQXKDDJ7A7KLZCY4W}

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	2026-05-18T02:35:14.801333Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

41b0ebc53be5e1750c69f83ea5e458e59fdb6c528777389d8f90d5b42065db8a

Aliases

arxiv: 0809.2829 · arxiv_version: 0809.2829v1 · doi: 10.48550/arxiv.0809.2829 · pith_short_12: IGYOXRJ34XQX · pith_short_16: IGYOXRJ34XQXKDDJ · pith_short_8: IGYOXRJ3

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/IGYOXRJ34XQXKDDJ7A7KLZCY4W \
  | 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: 41b0ebc53be5e1750c69f83ea5e458e59fdb6c528777389d8f90d5b42065db8a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c16402efeaca8fe7c365de4785bd0b026ceeae529b1fa2f302c74b005023c38",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-09-17T00:09:01Z",
    "title_canon_sha256": "917ac71ac55a7874e2b90c683082e6692b51ed34b2c7b112ead999233fbc1330"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.2829",
    "kind": "arxiv",
    "version": 1
  }
}