Pith Number

pith:B5LTBE62

pith:2009:B5LTBE62F43SQX55HLEVLXCKI3

not attested not anchored not stored refs pending

The EXIST view of Super-Massive Black Holes in the Universe

Fabrizio Tavecchio, Francesca Panessa, Gabriele Ghisellini, Gianpiero Tagliaferri, Giovanni Pareschi, Josh E. Grindlay, Lorenzo Natalucci, Luigi Foschini, Maria Teresa Fiocchi, Paolo Coppi, Pietro Ubertini, Roberto Della Ceca

arxiv:0912.3096 v1 · 2009-12-16 · 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{B5LTBE62F43SQX55HLEVLXCKI3}

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	2026-05-18T04:37:33.304790Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0f573093da2f37285fbd3ac955dc4a46e42f8670c4b3597418fb52714dd2e44d

Aliases

arxiv: 0912.3096 · arxiv_version: 0912.3096v1 · doi: 10.48550/arxiv.0912.3096 · pith_short_12: B5LTBE62F43S · pith_short_16: B5LTBE62F43SQX55 · pith_short_8: B5LTBE62

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/B5LTBE62F43SQX55HLEVLXCKI3 \
  | 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: 0f573093da2f37285fbd3ac955dc4a46e42f8670c4b3597418fb52714dd2e44d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "122dd3c835385ab1011dd0594fdb8083320c01b46a0a3496ebf9e07646600415",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-12-16T10:39:07Z",
    "title_canon_sha256": "4905dba4982f8dd4962012818ce27d081ac45cc497f17a25a1c1fce0377222d3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.3096",
    "kind": "arxiv",
    "version": 1
  }
}