Pith Number

pith:ZBZQ6SKH

pith:2015:ZBZQ6SKH3Z7VTHTGU4NJ5WIEVL

not attested not anchored not stored refs pending

Radio astronomy in Africa: the case of Ghana

Bernard Duah Asabere, Cathy Horellou, Hartmut Winkler, Michael Gaylard, Thomas Jarrett

arxiv:1503.08850 v2 · 2015-03-30 · 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{ZBZQ6SKH3Z7VTHTGU4NJ5WIEVL}

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	2026-05-18T02:19:35.561668Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c8730f4947de7f599e66a71a9ed904aae1dabf2faa7342e4af60f4315529aa1e

Aliases

arxiv: 1503.08850 · arxiv_version: 1503.08850v2 · doi: 10.48550/arxiv.1503.08850 · pith_short_12: ZBZQ6SKH3Z7V · pith_short_16: ZBZQ6SKH3Z7VTHTG · pith_short_8: ZBZQ6SKH

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/ZBZQ6SKH3Z7VTHTGU4NJ5WIEVL \
  | 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: c8730f4947de7f599e66a71a9ed904aae1dabf2faa7342e4af60f4315529aa1e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8e5c6317abf49b34f22fda60d6e206daaf8fbff6a71c890068bae8ff8a4f5eb1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2015-03-30T20:45:56Z",
    "title_canon_sha256": "7bea6e18e259de4b35ed8c2c97b37ca135951d0e0fe4eb394e767e1a7e679219"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.08850",
    "kind": "arxiv",
    "version": 2
  }
}