Pith Number

pith:2FJGAZJQ

pith:2012:2FJGAZJQAOFIAEKQEXYZCWCE6S

not attested not anchored not stored refs pending

A deep search for the host galaxies of GRBs with no detected optical afterglow

A. C. Updike, A. de Ugarte Postigo, A. J. Castro-Tirado, A. K\"upc\"u Yoldas, A. Nicuesa Guelbenzu, A. Rau, A. Rossi, A. Yoldas, C. Clemens, D. A. Kann, D. H. Hartmann, E. Gonsalves, E. Palazzi, E. Pian, F. Olivares E., J. Gorosabe, J. Greiner, L. A. Arnold, L. Amati, L. K. Hunt, M. Nardini, N. Masetti, P. Ferrero, P. M. J. Afonso, P. Schady, R. Filgas, S. Klose, S. Savaglio, S. Schmidl, S. Schulze, T. Kr\"uhler

arxiv:1202.1434 v4 · 2012-02-07 · astro-ph.CO · 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{2FJGAZJQAOFIAEKQEXYZCWCE6S}

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	2026-05-18T01:58:32.924282Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d152606530038a80115025f1915844f49eab0edfa17947185fdea9560276135f

Aliases

arxiv: 1202.1434 · arxiv_version: 1202.1434v4 · doi: 10.48550/arxiv.1202.1434 · pith_short_12: 2FJGAZJQAOFI · pith_short_16: 2FJGAZJQAOFIAEKQ · pith_short_8: 2FJGAZJQ

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/2FJGAZJQAOFIAEKQEXYZCWCE6S \
  | 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: d152606530038a80115025f1915844f49eab0edfa17947185fdea9560276135f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6e32aeeff651445798b3ce84f654441ac703994413a45bf5627db19a3afd92c5",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-02-07T14:30:42Z",
    "title_canon_sha256": "11d07c428143967badba06b856a37dbe73da2d2a87cef05e0041d7b48f339842"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.1434",
    "kind": "arxiv",
    "version": 4
  }
}