Pith Number

pith:WPIYZU6R

pith:2013:WPIYZU6RP272DZLRWK5FFIZYDD

not attested not anchored not stored refs pending

The low-extinction afterglow in the solar-metallicity host galaxy of GRB 110918A

A. de Ugarte Postigo, A. Levan, A. Nicuesa Guelbenzu, A. Rau, A. Rossi, C. C. Th\"one, D. A. Kann, D. Fox, E. Berger, F. Olivares E., J. Elliott, J. Gorosabel, J. Greiner, K. Wiersema, M. Nardini, N. R. Tanvir, P. Schady, R. Filgas, R. S\'anchez-Ram\'irez, S. Klose, S. Savaglio, S. Schmidl, T. Kr\"uhler, V. Sudilovsky

arxiv:1308.5520 v1 · 2013-08-26 · 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{WPIYZU6RP272DZLRWK5FFIZYDD}

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	2026-05-18T03:15:04.283446Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b3d18cd3d17ebfa1e571b2ba52a33818eb2f2a1f95017905785f13d460b5f2fc

Aliases

arxiv: 1308.5520 · arxiv_version: 1308.5520v1 · doi: 10.48550/arxiv.1308.5520 · pith_short_12: WPIYZU6RP272 · pith_short_16: WPIYZU6RP272DZLR · pith_short_8: WPIYZU6R

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/WPIYZU6RP272DZLRWK5FFIZYDD \
  | 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: b3d18cd3d17ebfa1e571b2ba52a33818eb2f2a1f95017905785f13d460b5f2fc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e5ba33284dec5a93aeb290456e62ced352434f04c56b2815135a29dbc871e5a3",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-08-26T09:08:57Z",
    "title_canon_sha256": "892dd5c6c48802a9ca30ba9523bc9e4ad811cd7bc3a0b27eea8727e0d74943ed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.5520",
    "kind": "arxiv",
    "version": 1
  }
}