Pith Number

pith:GXQKM3EM

pith:2011:GXQKM3EMCBVCXYAJU6QJ2EJNTH

not attested not anchored not stored refs pending

A highly magnified supernova at z=1.703 behind the massive galaxy cluster Abell 1689

A. Goobar, B. Cl\'ement, B. Milvang-Jensen, C. Lidman, D. Watson, E. M\"ortsell, H. Dahle, J.-G. Cuby, J. Hjorth, J. J\"onsson, J. Nordin, J.-P. Kneib, J. Richard, K. Paech, M. Limousin, R. Amanullah, S. Fabbro, T. Dahl\'en, T. Riehm, V. Stanishev

arxiv:1109.4740 v2 · 2011-09-22 · 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{GXQKM3EMCBVCXYAJU6QJ2EJNTH}

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	2026-05-18T02:00:26.734060Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

35e0a66c8c106a2be009a7a09d112d99d0408e44293462229273deed6ef11381

Aliases

arxiv: 1109.4740 · arxiv_version: 1109.4740v2 · doi: 10.48550/arxiv.1109.4740 · pith_short_12: GXQKM3EMCBVC · pith_short_16: GXQKM3EMCBVCXYAJ · pith_short_8: GXQKM3EM

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/GXQKM3EMCBVCXYAJU6QJ2EJNTH \
  | 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: 35e0a66c8c106a2be009a7a09d112d99d0408e44293462229273deed6ef11381

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "db56e99b1113f080f28914f7f58f27d5f555c36b1bf0a76bdbdf034fdaff8105",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-09-22T09:14:56Z",
    "title_canon_sha256": "93a733389c621b108c112f1d151b5692ad8b4f95b118dcaf36f37758241fdaff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.4740",
    "kind": "arxiv",
    "version": 2
  }
}