Pith Number

pith:NDSTSZGJ

pith:2020:NDSTSZGJRGAOWDCKFA3MR4W4BN

not attested not anchored not stored refs pending

Stellar-mass black holes in young massive and open stellar clusters IV: updated stellar-evolutionary and black hole spin models and comparisons with the LIGO-Virgo O1/O2 merger-event data

Sambaran Banerjee

arxiv:2004.07382 v4 · 2020-04-15 · 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{NDSTSZGJRGAOWDCKFA3MR4W4BN}

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	2026-07-05T01:33:37.703391Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

68e53964c98980eb0c4a2836c8f2dc0b5675f9dd62eb45c49e0b4b5fcdf245cf

Aliases

arxiv: 2004.07382 · arxiv_version: 2004.07382v4 · doi: 10.48550/arxiv.2004.07382 · pith_short_12: NDSTSZGJRGAO · pith_short_16: NDSTSZGJRGAOWDCK · pith_short_8: NDSTSZGJ

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/NDSTSZGJRGAOWDCKFA3MR4W4BN \
  | 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: 68e53964c98980eb0c4a2836c8f2dc0b5675f9dd62eb45c49e0b4b5fcdf245cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a354613e7f652921576cfee8e5f734956c73ca150bd6daac26de62c1bec202c8",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2020-04-15T22:53:42Z",
    "title_canon_sha256": "64877b96ab399112ec04b5dce3f8f60ab24cca4e930d17f383d3ebd840145e05"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.07382",
    "kind": "arxiv",
    "version": 4
  }
}