Pith Number

pith:7O7DF2N5

pith:2021:7O7DF2N5RMYUSJYEVCB74NUDGL

not attested not anchored not stored refs pending

Characterising the extended morphologies of BL Lacs at 144 MHz with LOFAR

Alessandro Capetti, Beatriz Mingo, Cathy Horellou, Francesco Massaro, G\"ulay G\"urkan, Huub R\"ottgering, John Quinn, Mamta Pandey-Pommier, Martin J. Hardcastle, Raffaella Morganti, Ranieri D. Baldi, Se\'an Mooney, Shane O'Sullivan, Urszula Pajdosz-\'Smierciak

arxiv:2109.02175 v1 · 2021-09-05 · 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{7O7DF2N5RMYUSJYEVCB74NUDGL}

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	2026-07-05T03:34:34.385394Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fbbe32e9bd8b31492704a883fe368332e7faeaf552dcdace707470db7c56e42f

Aliases

arxiv: 2109.02175 · arxiv_version: 2109.02175v1 · doi: 10.48550/arxiv.2109.02175 · pith_short_12: 7O7DF2N5RMYU · pith_short_16: 7O7DF2N5RMYUSJYE · pith_short_8: 7O7DF2N5

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/7O7DF2N5RMYUSJYEVCB74NUDGL \
  | 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: fbbe32e9bd8b31492704a883fe368332e7faeaf552dcdace707470db7c56e42f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "00b3cbe1d6c806d3e948d819ee5ed7cde771a8e4205d87d7e3f1fccdbbdda20c",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2021-09-05T22:10:47Z",
    "title_canon_sha256": "52ba4789b4ec53a1b7d6ec8cd4e46b5ca824b69112fc7808a645322e17e58644"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.02175",
    "kind": "arxiv",
    "version": 1
  }
}