Pith Number

pith:WB6RT72H

pith:2020:WB6RT72H7AWXGBX5ZJKZLZ2HPV

not attested not anchored not stored refs pending

Filling the uv-gaps of the current VLBI network in Africa

Eric Maina, Marcellin Atemkeng, Patrice M. Okouma, Roger Ianjamasimanana, Serges Zambou

arxiv:2003.08642 v1 · 2020-03-19 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WB6RT72H7AWXGBX5ZJKZLZ2HPV}

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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.

Cited by

1 paper in Pith

Extending the SKA Across Africa: The Case for a Continental African VLBI Network

Receipt and verification

First computed	2026-07-05T00:49:12.845714Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b07d19ff47f82d7306fdca5595e7477d59a19f69fa41644180ea44122ee268dd

Aliases

arxiv: 2003.08642 · arxiv_version: 2003.08642v1 · doi: 10.48550/arxiv.2003.08642 · pith_short_12: WB6RT72H7AWX · pith_short_16: WB6RT72H7AWXGBX5 · pith_short_8: WB6RT72H

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/WB6RT72H7AWXGBX5ZJKZLZ2HPV \
  | 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: b07d19ff47f82d7306fdca5595e7477d59a19f69fa41644180ea44122ee268dd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a99b03ca84c6ad5da100ac03d2affb8de84ff39630923e3b188207168ae40bb9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2020-03-19T09:36:56Z",
    "title_canon_sha256": "2ab168c5b5ee64c0bd5e04848790184fc8055a4370041aa3f8c03abc48895d7e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2003.08642",
    "kind": "arxiv",
    "version": 1
  }
}