Pith Number

pith:I6U2OBPH

pith:2023:I6U2OBPHYVJ7V2X5YFJVSBJOS3

not attested not anchored not stored refs pending

Massive binary black holes from Population II and III stars

Alessandro Bressan, Filippo Santoliquido, Gast\'on J. Escobar, Giuliano Iorio, Guglielmo Costa, Michela Mapelli, Ralf S. Klessen

arxiv:2303.15511 v3 · 2023-03-27 · astro-ph.GA · 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{I6U2OBPHYVJ7V2X5YFJVSBJOS3}

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	2026-07-05T06:44:19.658655Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

47a9a705e7c553faeafdc15359052e96dcf87511040eb303b8a4386fa1626f7e

Aliases

arxiv: 2303.15511 · arxiv_version: 2303.15511v3 · doi: 10.48550/arxiv.2303.15511 · pith_short_12: I6U2OBPHYVJ7 · pith_short_16: I6U2OBPHYVJ7V2X5 · pith_short_8: I6U2OBPH

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/I6U2OBPHYVJ7V2X5YFJVSBJOS3 \
  | 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: 47a9a705e7c553faeafdc15359052e96dcf87511040eb303b8a4386fa1626f7e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ccb62a097b28d14772f96ac180b9e35159cd8e17408eb91a7de66cf89ce58834",
    "cross_cats_sorted": [
      "astro-ph.HE",
      "astro-ph.SR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2023-03-27T18:00:05Z",
    "title_canon_sha256": "47988ac04e91b29c05f1f6c65948b26f45a4c6aff80cc7b64a6223dd85c50f19"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2303.15511",
    "kind": "arxiv",
    "version": 3
  }
}