Pith Number

pith:5BKL7L7J

pith:2022:5BKL7L7J5SJIUMPDDRYNKLHUAK

not attested not anchored not stored refs pending

Radio-loud Quasars above Redshift 4: VLBI Imaging of an Extended Sample

H. Cao, K. \'E. Gab\'anyi, K. Perger, L. I Gurvits, M. Krezinger, S. Frey, T. An, T. Sbarrato, Y. Zhang, Zs. Paragi

arxiv:2204.02114 v1 · 2022-04-05 · astro-ph.GA · 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{5BKL7L7J5SJIUMPDDRYNKLHUAK}

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	2026-07-05T04:35:46.798832Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e854bfafe9ec928a31e31c70d52cf402862c2f07b640289c0ba6aec78a2461d7

Aliases

arxiv: 2204.02114 · arxiv_version: 2204.02114v1 · doi: 10.48550/arxiv.2204.02114 · pith_short_12: 5BKL7L7J5SJI · pith_short_16: 5BKL7L7J5SJIUMPD · pith_short_8: 5BKL7L7J

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/5BKL7L7J5SJIUMPDDRYNKLHUAK \
  | 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: e854bfafe9ec928a31e31c70d52cf402862c2f07b640289c0ba6aec78a2461d7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "abafb0e70b8f1a7540f4f33c0aea258091d767473f2ad601fc9c638011591b0b",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2022-04-05T11:19:56Z",
    "title_canon_sha256": "18c19a1786ae76ef5bed537e2697f83fc7f007a61c657a8428879142f435944b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2204.02114",
    "kind": "arxiv",
    "version": 1
  }
}