Pith Number

pith:54HSUOTA

pith:2015:54HSUOTAXIKH7VBQ5OCYIKIN3W

not attested not anchored not stored refs pending

Megahertz peaked-spectrum sources in the Bo\"otes field I - a route towards finding high-redshift AGN?

(2) Leiden Observatory Leiden University The Netherlands, 3, 3), (3) Netherlands Institute for Radio Astronomy (ASTRON) The Netherlands, (4) Department of Physics, 5) ((1) Department of Astrophysics/IMAPP Radboud University Nijmegen The Netherlands, (5) Max-Planck-Institute f\"ur Radioastronomie Germany), Astronomy The Johns Hopkins University USA, David Cseh (1), Heino Falcke (1, Rocco Coppejans (1), Sjoert van Velzen (4), Wendy L. Williams (2

arxiv:1503.08865 v1 · 2015-03-30 · astro-ph.GA · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{54HSUOTAXIKH7VBQ5OCYIKIN3W}

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	2026-05-18T02:19:52.008262Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef0f2a3a60ba147fd430eb8584290ddd9232203a154facb4a634165ef4bccf3b

Aliases

arxiv: 1503.08865 · arxiv_version: 1503.08865v1 · doi: 10.48550/arxiv.1503.08865 · pith_short_12: 54HSUOTAXIKH · pith_short_16: 54HSUOTAXIKH7VBQ · pith_short_8: 54HSUOTA

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/54HSUOTAXIKH7VBQ5OCYIKIN3W \
  | 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: ef0f2a3a60ba147fd430eb8584290ddd9232203a154facb4a634165ef4bccf3b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9c122cb0fbd6dc26094407efb8c1a124ef4c575303b6c1f427777d4180788eaf",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-03-30T22:21:35Z",
    "title_canon_sha256": "2ce8a86c6b88177bcd54584c832293eadee8324df124a2fa23a8baecae6ff52a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.08865",
    "kind": "arxiv",
    "version": 1
  }
}