Pith Number

pith:2EOMMOP6

pith:2020:2EOMMOP6QXZE4DC6OBFDMJYDR4

not attested not anchored not stored refs pending

On the possibility of GW190425 being a black hole--neutron star binary merger

Kenta Kiuchi, Kota Hayashi, Koutarou Kyutoku, Kyohei Kawaguchi, Masaomi Tanaka, Masaru Shibata, Sho Fujibayashi

arxiv:2001.04474 v2 · 2020-01-13 · astro-ph.HE · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2EOMMOP6QXZE4DC6OBFDMJYDR4}

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	2026-07-05T00:39:16.484853Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d11cc639fe85f24e0c5e704a3627038f3ca98978e3c161be3edb33c6fb9e9349

Aliases

arxiv: 2001.04474 · arxiv_version: 2001.04474v2 · doi: 10.48550/arxiv.2001.04474 · pith_short_12: 2EOMMOP6QXZE · pith_short_16: 2EOMMOP6QXZE4DC6 · pith_short_8: 2EOMMOP6

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/2EOMMOP6QXZE4DC6OBFDMJYDR4 \
  | 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: d11cc639fe85f24e0c5e704a3627038f3ca98978e3c161be3edb33c6fb9e9349

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "76423e686334aa3c10ceafd08052dbf760989c1762d801ed5083e62e64e7bc99",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2020-01-13T19:00:00Z",
    "title_canon_sha256": "a8eb55f5d664555ef0751c54b8ac249fdb64f288679a4bb48e211428069e218b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2001.04474",
    "kind": "arxiv",
    "version": 2
  }
}