Pith Number

pith:Q5BORM65

pith:2020:Q5BORM65TLP2WPWJGD5JOTIWH4

not attested not anchored not stored refs pending

Optical spectroscopic observations of gamma-ray blazar candidates. IX. Optical archival spectra and further observations from SOAR and OAGH

A. Paggi, D. Milisavljevic, E. Jim\'enez-Bail\'on, E. J. Marchesini, F. La Franca, F. Massaro, F. Ricci, G. Tosti, H. A. Pe\~na-Herazo, Howard A. Smith, M. Landoni, N. Masetti, R. d'Abrusco, V. Chavushyan

arxiv:2003.12368 v1 · 2020-03-27 · astro-ph.HE · 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{Q5BORM65TLP2WPWJGD5JOTIWH4}

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	2026-07-05T01:09:36.586321Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8742e8b3dd9adfab3ec930fa974d163f3c1ea2fe339dcb4b7b831091d1210375

Aliases

arxiv: 2003.12368 · arxiv_version: 2003.12368v1 · doi: 10.48550/arxiv.2003.12368 · pith_short_12: Q5BORM65TLP2 · pith_short_16: Q5BORM65TLP2WPWJ · pith_short_8: Q5BORM65

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/Q5BORM65TLP2WPWJGD5JOTIWH4 \
  | 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: 8742e8b3dd9adfab3ec930fa974d163f3c1ea2fe339dcb4b7b831091d1210375

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cc7f43c5e90fa3c99e1fbe8d2963d720d8826934ff8895910d8b9d713539888e",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2020-03-27T12:27:12Z",
    "title_canon_sha256": "1fe61256966bb3978a275bed0e7e2bb353b7fb6eb412abe95442e641da3b2d59"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2003.12368",
    "kind": "arxiv",
    "version": 1
  }
}