Pith Number

pith:6BYCRVFZ

pith:2019:6BYCRVFZO7C7GHWMRFKTAMVMIY

not attested not anchored not stored refs pending

Determination of properties of protoneutron stars toward black hole formation via gravitational wave observations

Hajime Sotani, Kohsuke Sumiyoshi

arxiv:1909.11816 v1 · 2019-09-25 · 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{6BYCRVFZO7C7GHWMRFKTAMVMIY}

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	2026-07-05T00:12:29.723410Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f07028d4b977c5f31ecc89553032ac46030e26149766c2363c093ace10a892e6

Aliases

arxiv: 1909.11816 · arxiv_version: 1909.11816v1 · doi: 10.48550/arxiv.1909.11816 · pith_short_12: 6BYCRVFZO7C7 · pith_short_16: 6BYCRVFZO7C7GHWM · pith_short_8: 6BYCRVFZ

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/6BYCRVFZO7C7GHWMRFKTAMVMIY \
  | 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: f07028d4b977c5f31ecc89553032ac46030e26149766c2363c093ace10a892e6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d4d7acdc22cfecc8575c7cdb17cbe5118fbe8f99d3e7cc5a41957275ebf933e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-09-25T23:38:04Z",
    "title_canon_sha256": "d2ac05aa056283353396bd8b1f9b6e9cfaa4e56713001f8ef59f107b5163c1ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.11816",
    "kind": "arxiv",
    "version": 1
  }
}