Pith Number

pith:77Y47QB6

pith:2012:77Y47QB6JPUT4EGBT64FMRQF6Z

not attested not anchored not stored refs pending

GRB 090618: The First Example of a Neutron Star Gravitational Collapse to a Black Hole Induced by a Type Ib/c Supernova

Jorge A. Rueda, L. Izzo, R. Ruffini

arxiv:1206.2887 v3 · 2012-06-13 · 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{77Y47QB6JPUT4EGBT64FMRQF6Z}

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	2026-05-18T02:55:27.820263Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fff1cfc03e4be93e10c19fb8564605f6663d723f3e1830697aa24f28a38bee1b

Aliases

arxiv: 1206.2887 · arxiv_version: 1206.2887v3 · doi: 10.48550/arxiv.1206.2887 · pith_short_12: 77Y47QB6JPUT · pith_short_16: 77Y47QB6JPUT4EGB · pith_short_8: 77Y47QB6

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/77Y47QB6JPUT4EGBT64FMRQF6Z \
  | 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: fff1cfc03e4be93e10c19fb8564605f6663d723f3e1830697aa24f28a38bee1b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ff3cba5acb5ac475f9edc981399b006e8e74f0b8b9e3c4ae951ab86f4e1b482b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2012-06-13T18:07:26Z",
    "title_canon_sha256": "a7d5a578b88c02254b8c668f002d3e283f2f1e696b9c2ed589a9853aa70ddeb4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.2887",
    "kind": "arxiv",
    "version": 3
  }
}