Pith Number

pith:APWK75EK

pith:2008:APWK75EKFFNJYTWNUNEWEKQPIF

not attested not anchored not stored refs pending

SDSSJ092712.65+294344.0: a candidate massive black hole binary

C. Montuori, F. Haardt, M. Colpi, M. Dotti, M. Volonteri, R. Decarli

arxiv:0809.3446 v2 · 2008-09-19 · 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{APWK75EKFFNJYTWNUNEWEKQPIF}

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	2026-05-18T02:15:34.159299Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

03ecaff48a295a9c4ecda349622a0f41433a250da61318cb990420db2cb53820

Aliases

arxiv: 0809.3446 · arxiv_version: 0809.3446v2 · doi: 10.48550/arxiv.0809.3446 · pith_short_12: APWK75EKFFNJ · pith_short_16: APWK75EKFFNJYTWN · pith_short_8: APWK75EK

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/APWK75EKFFNJYTWNUNEWEKQPIF \
  | 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: 03ecaff48a295a9c4ecda349622a0f41433a250da61318cb990420db2cb53820

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5b7e1ef74bb3437bb45750d7dbb81fc330eb061771e5bed21e3f4c77542783b2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-09-19T19:54:32Z",
    "title_canon_sha256": "a08ba05cb6f38a1aa9270bd916ed496604a5a0200dc4d6d5832558ae5ddb9fe5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.3446",
    "kind": "arxiv",
    "version": 2
  }
}