Pith Number

pith:E56ONA7I

pith:2012:E56ONA7IJ66PNVZM7XG2WSNGEX

not attested not anchored not stored refs pending

GRB 090227B: the missing link between the genuine short and long GRBs

Ana Virginia Penacchioni, Carlo Luciano Bianco, Luca Izzo, Marco Muccino, Remo Ruffini

arxiv:1205.6600 v4 · 2012-05-30 · astro-ph.HE · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{E56ONA7IJ66PNVZM7XG2WSNGEX}

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	2026-05-18T03:36:06.419716Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

277ce683e84fbcf6d72cfdcdab49a625f0efc684a2219a66517605a196a33a73

Aliases

arxiv: 1205.6600 · arxiv_version: 1205.6600v4 · doi: 10.48550/arxiv.1205.6600 · pith_short_12: E56ONA7IJ66P · pith_short_16: E56ONA7IJ66PNVZM · pith_short_8: E56ONA7I

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/E56ONA7IJ66PNVZM7XG2WSNGEX \
  | 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: 277ce683e84fbcf6d72cfdcdab49a625f0efc684a2219a66517605a196a33a73

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "48f236f61796b5e8358ee5f2730e0ad7552792924c18b14484e0aa8006f75d54",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2012-05-30T09:33:11Z",
    "title_canon_sha256": "61fb4416819872188321ad4653f9ee8a233b20af70954b91f056dbe29c9100bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.6600",
    "kind": "arxiv",
    "version": 4
  }
}