Pith Number

pith:PIK7EITW

pith:2012:PIK7EITW2AFXIGYDBXB6CEEQQ7

not attested not anchored not stored refs pending

The Low-mass, Highly Accreting Black Hole Associated with the Active Galactic Nucleus 2XMM J123103.2+110648

KASI), Luis C. Ho (Carnegie Obs.), Minjin Kim (Carnegie Obs., Yuichi Terashima (Ehime Univ.)

arxiv:1210.0440 v1 · 2012-10-01 · astro-ph.CO · 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{PIK7EITW2AFXIGYDBXB6CEEQQ7}

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	2026-05-18T01:54:12.023719Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7a15f22276d00b741b030dc3e1109087d8ff962d89e7c332d1acff51b382d911

Aliases

arxiv: 1210.0440 · arxiv_version: 1210.0440v1 · doi: 10.48550/arxiv.1210.0440 · pith_short_12: PIK7EITW2AFX · pith_short_16: PIK7EITW2AFXIGYD · pith_short_8: PIK7EITW

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/PIK7EITW2AFXIGYDBXB6CEEQQ7 \
  | 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: 7a15f22276d00b741b030dc3e1109087d8ff962d89e7c332d1acff51b382d911

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "652cc13ec8aa2a3e59f4c3b0556c57884f3760b72ecea3b57b247776530abc17",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-10-01T15:18:12Z",
    "title_canon_sha256": "3135131c96c7fec730ec805329a42d22432db3aba8de33466f3f8a8e8cd54157"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.0440",
    "kind": "arxiv",
    "version": 1
  }
}