Pith Number

pith:62YQT76X

pith:2020:62YQT76XNWJ4WKLW2P5CMDQTJZ

not attested not anchored not stored refs pending

Formation of mass gap compact object and black hole binary from Population III stars

Hiroyuki Nakano, Takashi Nakamura, Tomoya Kinugawa

arxiv:2007.13343 v2 · 2020-07-27 · astro-ph.HE · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{62YQT76XNWJ4WKLW2P5CMDQTJZ}

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	2026-07-05T01:56:30.905353Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f6b109ffd76d93cb2976d3fa260e134e68cd7e72d19cfdaa403c74c881625335

Aliases

arxiv: 2007.13343 · arxiv_version: 2007.13343v2 · doi: 10.48550/arxiv.2007.13343 · pith_short_12: 62YQT76XNWJ4 · pith_short_16: 62YQT76XNWJ4WKLW · pith_short_8: 62YQT76X

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/62YQT76XNWJ4WKLW2P5CMDQTJZ \
  | 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: f6b109ffd76d93cb2976d3fa260e134e68cd7e72d19cfdaa403c74c881625335

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1569157d2a981f9e05ef4013c766573b40a56b9a783e637c960f533e1752e91f",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2020-07-27T07:54:56Z",
    "title_canon_sha256": "e3a92fd6ceaadf359bb4304c112234314744efe6b176baa57c72b6d35020315b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2007.13343",
    "kind": "arxiv",
    "version": 2
  }
}