Pith Number

pith:22A7MTE3

pith:2018:22A7MTE3JBFJ7DUBTJQHD42TXW

not attested not anchored not stored refs pending

VLT/X-shooter GRBs: Individual extinction curves of star-forming regions

A. de Ugarte Postigo, A. Gomboc, A. J. Levan, D. Watson, J. Bolmer, J. Japelj, J. P. U. Fynbo, J. Selsing, K. E. Heintz, K. Wiersema, P. Jakobsson, P. M{\o}ller, P. Schady, S. Covino, T. Zafar, V. D'Elia, Z. Cano

arxiv:1805.07016 v1 · 2018-05-18 · astro-ph.GA · 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{22A7MTE3JBFJ7DUBTJQHD42TXW}

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	2026-05-18T00:14:53.213583Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d681f64c9b484a9f8e819a6071f353bd947fde78f631674d0ef2129cd71c65f0

Aliases

arxiv: 1805.07016 · arxiv_version: 1805.07016v1 · doi: 10.48550/arxiv.1805.07016 · pith_short_12: 22A7MTE3JBFJ · pith_short_16: 22A7MTE3JBFJ7DUB · pith_short_8: 22A7MTE3

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/22A7MTE3JBFJ7DUBTJQHD42TXW \
  | 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: d681f64c9b484a9f8e819a6071f353bd947fde78f631674d0ef2129cd71c65f0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b95a7f4d320f1c8c362179fa9027a937a21e8cd315f1eb71528115b21d2a532",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-05-18T01:37:50Z",
    "title_canon_sha256": "6027850536d32f77fe60704b2ef89fe8c0a1c8605b57958e2dd92c20829ef02d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.07016",
    "kind": "arxiv",
    "version": 1
  }
}