Pith Number

pith:7QOZEGDI

pith:2021:7QOZEGDIUERXQW4AVNM35XDC7Q

not attested not anchored not stored refs pending

A thirteen-year-long broadband view of BL Lac

N. Sahakyan, P. Giommi

arxiv:2108.12232 v2 · 2021-08-27 · 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{7QOZEGDIUERXQW4AVNM35XDC7Q}

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

BL Lacertae under the Flare of 2024: Probing Temporal and Spectral Dynamics

Receipt and verification

First computed	2026-07-05T04:15:45.281664Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc1d921868a123785b80ab59bedc62fc18087e421e668142fce87d35f85884cd

Aliases

arxiv: 2108.12232 · arxiv_version: 2108.12232v2 · doi: 10.48550/arxiv.2108.12232 · pith_short_12: 7QOZEGDIUERX · pith_short_16: 7QOZEGDIUERXQW4A · pith_short_8: 7QOZEGDI

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/7QOZEGDIUERXQW4AVNM35XDC7Q \
  | 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: fc1d921868a123785b80ab59bedc62fc18087e421e668142fce87d35f85884cd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ec1f5f6b2e0d84c7106d9b2539e8be67c17d2022a6ad112a4e5666c8ebeb394d",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2021-08-27T12:08:14Z",
    "title_canon_sha256": "e8d1db4f7af569193c3d24b5d85b6f75add3b50ce277a8a891ee5a83419ce4af"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.12232",
    "kind": "arxiv",
    "version": 2
  }
}