Pith Number

pith:MGHACSQ4

pith:2017:MGHACSQ4QXWLOSCWU7GOE6NDES

not attested not anchored not stored refs pending

Upper limits on the 21-cm Epoch of Reionization power spectrum from one night with LOFAR

A.G. de Bruyn, A. Ghosh, A.H. Patil, A. R. Offringa, B. Ciardi, B. K. Gehlot, D. Vrbanec, E. Chapman, F. B. Abdalla, G. Harker, G. Mellema, H. Vedantham, I. T. Iliev, J. Schaye, K. Kakiichi, K. M. B. Asad, L.V.E. Koopmans, M. A. Brentjens, M. B. Silva, M. Hatef, M. Mevius, S. J. Wijnholds, S. Majumdar, S. Yatawatta, S. Zaroubi, V. Jelic, V.N. Pandey, W. N. Brouw

arxiv:1702.08679 v1 · 2017-02-28 · astro-ph.CO · astro-ph.IM

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	2026-05-18T00:47:01.228668Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

618e014a1c85ecb74856a7cce279a32481d9ad68d7fe93848bf6d5803919c820

Aliases

arxiv: 1702.08679 · arxiv_version: 1702.08679v1 · doi: 10.48550/arxiv.1702.08679 · pith_short_12: MGHACSQ4QXWL · pith_short_16: MGHACSQ4QXWLOSCW · pith_short_8: MGHACSQ4

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/MGHACSQ4QXWLOSCWU7GOE6NDES \
  | 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: 618e014a1c85ecb74856a7cce279a32481d9ad68d7fe93848bf6d5803919c820

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a11b43e2b8856050cd208c7da98087f3b7bef4eb576994da84b66898c35db584",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2017-02-28T07:54:18Z",
    "title_canon_sha256": "1f2f83767fd727a771cabaeec30fc330dc108bc627b2ee1212567cf50668c822"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.08679",
    "kind": "arxiv",
    "version": 1
  }
}