Pith Number

pith:COEIR3MH

pith:2019:COEIR3MHZYD2237ZDPX6ITC2ME

not attested not anchored not stored refs pending

The host galaxies of double compact objects across cosmic time

Giancarlo Ghirlanda, Maria Celeste Artale, Mattia Toffano, Michela Mapelli, Nicola Giacobbo

arxiv:1906.01072 v1 · 2019-06-03 · astro-ph.HE · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{COEIR3MHZYD2237ZDPX6ITC2ME}

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	2026-07-05T00:06:45.405561Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

138888ed87ce07ad6ff91befe44c5a611a0b5eb42f907a74bfc3707909d6d28b

Aliases

arxiv: 1906.01072 · arxiv_version: 1906.01072v1 · doi: 10.48550/arxiv.1906.01072 · pith_short_12: COEIR3MHZYD2 · pith_short_16: COEIR3MHZYD2237Z · pith_short_8: COEIR3MH

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/COEIR3MHZYD2237ZDPX6ITC2ME \
  | 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: 138888ed87ce07ad6ff91befe44c5a611a0b5eb42f907a74bfc3707909d6d28b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "89b4c94350f5ef58bc7643359f0fa9a206cfa3bf8a9a80342a7f09a3d73dcac0",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-06-03T20:42:06Z",
    "title_canon_sha256": "d3e3daf10721e48b278cb69a4731eb0bb4b221cc50ae031e63e7cd0fb0a3d0aa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.01072",
    "kind": "arxiv",
    "version": 1
  }
}