Pith Number

pith:B44V7XOM

pith:2017:B44V7XOMY6DZGOLNUFZ6F5B37M

not attested not anchored not stored refs pending

The birth of a supermassive black hole binary

Alessandro Lupi, Hugo Pfister, Jillian M. Bellovary, Marta Volonteri, Massimo Dotti, Pedro R. Capelo

arxiv:1706.04010 v1 · 2017-06-13 · astro-ph.GA · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{B44V7XOMY6DZGOLNUFZ6F5B37M}

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	2026-05-18T00:36:31.246718Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0f395fddccc78793396da173e2f43bfb0b0f79ba139c69663fe224b09ef4ab07

Aliases

arxiv: 1706.04010 · arxiv_version: 1706.04010v1 · doi: 10.48550/arxiv.1706.04010 · pith_short_12: B44V7XOMY6DZ · pith_short_16: B44V7XOMY6DZGOLN · pith_short_8: B44V7XOM

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/B44V7XOMY6DZGOLNUFZ6F5B37M \
  | 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: 0f395fddccc78793396da173e2f43bfb0b0f79ba139c69663fe224b09ef4ab07

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "db7d705e881c2b3e413e37b7e2a90a3018d6e348ad756d8880d5cabb3d79e278",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-06-13T11:33:34Z",
    "title_canon_sha256": "bfb8345e15c89e4cc850cfc495edaa75ed98a9ed7729bcc79b6f2433e35fd1a9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.04010",
    "kind": "arxiv",
    "version": 1
  }
}