Pith Number

pith:NBGU6IAK

pith:2009:NBGU6IAK35AI7HHV4DPCGLCGXL

not attested not anchored not stored refs pending

Catalog of Radio Galaxies with z>0.3. III: Angular Sizes and Flux Density According to the NVSS Data

M.L. Khabibullina, O.V. Verkhodanov

arxiv:0911.3752 v1 · 2009-11-19 · astro-ph.CO · astro-ph.GA

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

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	2026-05-18T02:10:46.001634Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

684d4f200adf408f9cf5e0de232c46baced7eb86533c23d375f52a639da249d2

Aliases

arxiv: 0911.3752 · arxiv_version: 0911.3752v1 · doi: 10.48550/arxiv.0911.3752 · pith_short_12: NBGU6IAK35AI · pith_short_16: NBGU6IAK35AI7HHV · pith_short_8: NBGU6IAK

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/NBGU6IAK35AI7HHV4DPCGLCGXL \
  | 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: 684d4f200adf408f9cf5e0de232c46baced7eb86533c23d375f52a639da249d2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2a3faf70d01268e501ad169e276cc04c76210bea31174078d6d4428baf9bc606",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-11-19T10:30:20Z",
    "title_canon_sha256": "68712227dc4fe69aae32b303226bc76e367ff9a9031522a49ac5dc59374e7b26"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.3752",
    "kind": "arxiv",
    "version": 1
  }
}