Pith Number

pith:XLBPEW54

pith:2018:XLBPEW545UFBSUNWWBEECFL36E

not attested not anchored not stored refs pending

New GTC Spectroscopic Data and a Statistical Study to Better Constrain the Redshift of the BL Lac RGB J2243+203

A. Carrami\~nana, A. C. Pichel, A. C. Rovero, A. Furniss, A. L. Longinotti, C. Donzelli, D. Rosa Gonz\'alez, E. Terlevich, H. Muriel, I. Aretxaga, J. Becerra Gonz\'alez, J. M\'endez-Abreu, O. Vega, R. J. Terlevich, S. Couti\~no de Le\'on, Y. D. Mayya

arxiv:1811.03948 v1 · 2018-11-07 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XLBPEW545UFBSUNWWBEECFL36E}

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	2026-05-17T23:59:48.438483Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bac2f25bbced0a1951b6b04841157bf135415001682eb5327753e4481dd6fe1e

Aliases

arxiv: 1811.03948 · arxiv_version: 1811.03948v1 · doi: 10.48550/arxiv.1811.03948 · pith_short_12: XLBPEW545UFB · pith_short_16: XLBPEW545UFBSUNW · pith_short_8: XLBPEW54

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/XLBPEW545UFBSUNWWBEECFL36E \
  | 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: bac2f25bbced0a1951b6b04841157bf135415001682eb5327753e4481dd6fe1e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3104a7dc962267a39d95b955809622e226c85f9a123d7596fd320a246ce3ab04",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-11-07T21:05:10Z",
    "title_canon_sha256": "d60c951f36ce37767891f0c3f378c5eec80aa81be32dd8175793ee4eb6709b04"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.03948",
    "kind": "arxiv",
    "version": 1
  }
}