Pith Number

pith:ZAOAHIRZ

pith:2019:ZAOAHIRZT4EOSR4RKLGXIAXSDT

not attested not anchored not stored refs pending

Gravitational waves from very massive stars collapsing to a black hole

Haruki Uchida, Koh Takahashi, Masaru Shibata, Takashi Yoshida

arxiv:1901.08260 v1 · 2019-01-24 · 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{ZAOAHIRZT4EOSR4RKLGXIAXSDT}

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	2026-05-17T23:55:37.521365Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c81c03a2399f08e9479152cd7402f21cd44c17505ffcd2e3579989f530d0294a

Aliases

arxiv: 1901.08260 · arxiv_version: 1901.08260v1 · doi: 10.48550/arxiv.1901.08260 · pith_short_12: ZAOAHIRZT4EO · pith_short_16: ZAOAHIRZT4EOSR4R · pith_short_8: ZAOAHIRZ

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/ZAOAHIRZT4EOSR4RKLGXIAXSDT \
  | 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: c81c03a2399f08e9479152cd7402f21cd44c17505ffcd2e3579989f530d0294a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "35af1420e84fc089a46ad5e17c0cb5fc2c5ab7e064590ff41fdfc585cc3322cb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-01-24T07:27:52Z",
    "title_canon_sha256": "a5968a843cc43f674d9b5c2fc12f54b77d28c681851d8b9a2e0df5da73810a38"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.08260",
    "kind": "arxiv",
    "version": 1
  }
}