Pith Number

pith:KJAVM5QC

pith:2013:KJAVM5QCM4MEXUJ3AGAOPSSMM6

not attested not anchored not stored refs pending

Hubble Space Telescope observations of the afterglow, supernova and host galaxy associated with the extremely bright GRB 130427A

A.J. Levan, A. Pe'er, A.S. Fruchter, C. Kouveliotou, D.A. Perley, E. Pian, J. Graham, J. Hjorth, J.P.U. Fynbo, K. Misra, K. Wiersema, N.R. Tanvir, P. Mazzali, R.A. Hounsell, S.B. Cenko, Z. Cano

arxiv:1307.5338 v2 · 2013-07-19 · astro-ph.HE

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

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	2026-05-18T01:48:42.295768Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

524156760267184bd13b0180e7ca4c67a6fa4e7054336e3623a426f96c27cad4

Aliases

arxiv: 1307.5338 · arxiv_version: 1307.5338v2 · doi: 10.48550/arxiv.1307.5338 · pith_short_12: KJAVM5QCM4ME · pith_short_16: KJAVM5QCM4MEXUJ3 · pith_short_8: KJAVM5QC

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/KJAVM5QCM4MEXUJ3AGAOPSSMM6 \
  | 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: 524156760267184bd13b0180e7ca4c67a6fa4e7054336e3623a426f96c27cad4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3ea04698bff1643bf59b1f4ab0cf464c53d2980fdb77b36a9c685021443ffcd7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-07-19T21:15:01Z",
    "title_canon_sha256": "aa9572a6a328eee4665c05001718d35cd6d77a57f827befc3c9c9c14abd7367b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.5338",
    "kind": "arxiv",
    "version": 2
  }
}