Pith Number

pith:2MGONZA3

pith:2009:2MGONZA32TSMCSTMA4A5BRA2XR

not attested not anchored not stored refs pending

Indication of Two Classes in the Swift Short Gamma-Ray Bursts from the XRT X-Ray Afterglow Light Curves

N. Gehrels, T. Sakamoto

arxiv:0901.4920 v1 · 2009-01-30 · 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{2MGONZA32TSMCSTMA4A5BRA2XR}

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	2026-07-04T15:45:05.042391Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d30ce6e41bd4e4c14a6c0701d0c41abc626eb3439d7c0b7e45302ec6d1abe1af

Aliases

arxiv: 0901.4920 · arxiv_version: 0901.4920v1 · doi: 10.48550/arxiv.0901.4920 · pith_short_12: 2MGONZA32TSM · pith_short_16: 2MGONZA32TSMCSTM · pith_short_8: 2MGONZA3

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/2MGONZA32TSMCSTMA4A5BRA2XR \
  | 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: d30ce6e41bd4e4c14a6c0701d0c41abc626eb3439d7c0b7e45302ec6d1abe1af

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c1e855221b365631dc6bc85b882c468e72e6c89fcc7d6bf10662b6ea4ff66c31",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-01-30T16:05:09Z",
    "title_canon_sha256": "da4032052c553e3008451da990e6ff594873ed25996dd4fde102641c348c8f50"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.4920",
    "kind": "arxiv",
    "version": 1
  }
}