Pith Number

pith:2O3AM33Y

pith:2012:2O3AM33Y6KPYJEEMS5DKUDRTOZ

not attested not anchored not stored refs pending

Characterizing the Optical Variability of Bright Blazars: Variability-Based Selection of Fermi AGN

Andrew C. Becker, Branimir Sesar, Chelsea L. MacLeod, Christopher S. Kochanek, James R. A. Davenport, John J. Ruan, J. Scott Stuart, Richard M. Plotkin, Scott F. Anderson, T. H. Burnett, Zeljko Ivezic

arxiv:1209.3770 v1 · 2012-09-17 · astro-ph.HE · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2O3AM33Y6KPYJEEMS5DKUDRTOZ}

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	2026-05-18T01:54:27.238842Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3b6066f78f29f84908c9746aa0e3376600baca121dfa6aa7bf3ae6f39671bef

Aliases

arxiv: 1209.3770 · arxiv_version: 1209.3770v1 · doi: 10.48550/arxiv.1209.3770 · pith_short_12: 2O3AM33Y6KPY · pith_short_16: 2O3AM33Y6KPYJEEM · pith_short_8: 2O3AM33Y

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/2O3AM33Y6KPYJEEMS5DKUDRTOZ \
  | 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: d3b6066f78f29f84908c9746aa0e3376600baca121dfa6aa7bf3ae6f39671bef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9690f1f40a61ba4a5925e41fe617f8eac8ec4e667df903bfccfee77e37c0db60",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2012-09-17T20:00:00Z",
    "title_canon_sha256": "70371cf182e1bb2002a19c803daea2bdd0cd41d7853130cdd60c893dd0551972"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.3770",
    "kind": "arxiv",
    "version": 1
  }
}