Pith Number

pith:QOJTKULB

pith:2014:QOJTKULBOY6U3IPXDWTC2LIBYZ

not attested not anchored not stored refs pending

On the location of the supermassive black hole in CTA 102

C. M. Fromm, E. Ros, J. A. Zensus, M. Perucho, T. Savolainen

arxiv:1412.1317 v1 · 2014-12-03 · astro-ph.GA · 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{QOJTKULBOY6U3IPXDWTC2LIBYZ}

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	2026-05-18T02:20:30.460998Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8393355161763d4da1f71da62d2d01c65c52786180db8a6b806baf16e35c25a9

Aliases

arxiv: 1412.1317 · arxiv_version: 1412.1317v1 · doi: 10.48550/arxiv.1412.1317 · pith_short_12: QOJTKULBOY6U · pith_short_16: QOJTKULBOY6U3IPX · pith_short_8: QOJTKULB

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/QOJTKULBOY6U3IPXDWTC2LIBYZ \
  | 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: 8393355161763d4da1f71da62d2d01c65c52786180db8a6b806baf16e35c25a9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2606683570e9b3cf692442ddd5bbac573fdf013c8ab346fd40d58a8439d2e1a4",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2014-12-03T13:22:41Z",
    "title_canon_sha256": "f6e96da1ae530d50b8ea9709dc89897d7ed2364335c0f100bcfb5d2295bc8c00"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.1317",
    "kind": "arxiv",
    "version": 1
  }
}