Pith Number

pith:WNXT6J5Q

pith:2009:WNXT6J5QDOMBBQ5RJK3WWO6VSI

not attested not anchored not stored refs pending

VLBI observations of the CORALZ sample: young radio sources at low redshift

C.R. Kaiser, I.A.G. Snellen, K.-H. Mack, N. de Vries, R.T. Schilizzi

arxiv:0901.2124 v1 · 2009-01-14 · 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{WNXT6J5QDOMBBQ5RJK3WWO6VSI}

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	2026-05-18T02:14:57.413885Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b36f3f27b01b9810c3b14ab76b3bd5920be046fa8c4029381e59ef27957db013

Aliases

arxiv: 0901.2124 · arxiv_version: 0901.2124v1 · doi: 10.48550/arxiv.0901.2124 · pith_short_12: WNXT6J5QDOMB · pith_short_16: WNXT6J5QDOMBBQ5R · pith_short_8: WNXT6J5Q

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/WNXT6J5QDOMBBQ5RJK3WWO6VSI \
  | 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: b36f3f27b01b9810c3b14ab76b3bd5920be046fa8c4029381e59ef27957db013

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ab6a7a13ff7263eae5853f71d49e980166a1887f24e0333c513ea21c7939faee",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-01-14T21:15:52Z",
    "title_canon_sha256": "5e1c6e838cd7cdeac47a9a2008c1dcf4451e7fe1668faef42f9e65b4e650bdfd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.2124",
    "kind": "arxiv",
    "version": 1
  }
}