Pith Number

pith:S67LSMSO

pith:2019:S67LSMSO5BSEW76PEKNRYQR53C

not attested not anchored not stored refs pending

Open Universe for Blazars: a new generation of astronomical products based on 14 years of Swift-XRT data

A.M.T. Pollock, A. V. Penacchioni, C.H. Brandt, F. Arneodo, J. Del Rio Vera, M. de Angelis, M. Perri, N. Sahakyan, O. Civitarese, P. Giommi, R. Middei, R. Ruffini, S. Di Pippo, S. Turriziani, U. Barres de Almeida, V. D'Elia, Y. L. Chang

arxiv:1904.06043 v2 · 2019-04-12 · 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{S67LSMSO5BSEW76PEKNRYQR53C}

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.

Cited by

1 paper in Pith

An extremely X--ray weak blazar at z=5

Receipt and verification

First computed	2026-07-05T00:17:02.311498Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

97beb9324ee8644b7fcf229b1c423dd8b382613516409775f58056782a771121

Aliases

arxiv: 1904.06043 · arxiv_version: 1904.06043v2 · doi: 10.48550/arxiv.1904.06043 · pith_short_12: S67LSMSO5BSE · pith_short_16: S67LSMSO5BSEW76P · pith_short_8: S67LSMSO

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/S67LSMSO5BSEW76PEKNRYQR53C \
  | 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: 97beb9324ee8644b7fcf229b1c423dd8b382613516409775f58056782a771121

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "00668f7cfcf53e9b7771e3e5bd1df9aa0a786c5af9219aa65343da294b4a6d91",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-04-12T05:44:03Z",
    "title_canon_sha256": "fab564905711f3c0affabe671173cca8da1a377cb900568eadac8ab69bd41830"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.06043",
    "kind": "arxiv",
    "version": 2
  }
}