Pith Number

pith:2J3JDU4I

pith:2021:2J3JDU4IIOSLOBEZCWWZPOXH4H

not attested not anchored not stored refs pending

The LOFAR LBA Sky Survey: Deep Fields I. The Bo\"otes Field

C. Tasse, D.J.B. Smith, F. De Gasperin, H.J.A. R\"ottgering, M. Bonato, M. Bondi, M. Br\"uggen, M.J.H. Hardcastle, P.N. Best, R. van Weeren, T.W. Shimwell, W.L. Williams

arxiv:2109.14865 v1 · 2021-09-30 · astro-ph.GA · 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{2J3JDU4IIOSLOBEZCWWZPOXH4H}

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	2026-07-05T03:57:12.948749Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d27691d38843a4b7049915ad97bae7e1c1537e4469725709924d89f17db8a677

Aliases

arxiv: 2109.14865 · arxiv_version: 2109.14865v1 · doi: 10.48550/arxiv.2109.14865 · pith_short_12: 2J3JDU4IIOSL · pith_short_16: 2J3JDU4IIOSLOBEZ · pith_short_8: 2J3JDU4I

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/2J3JDU4IIOSLOBEZCWWZPOXH4H \
  | 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: d27691d38843a4b7049915ad97bae7e1c1537e4469725709924d89f17db8a677

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0759846d2146c6027cd609b2a1ee379bd4e312321ef4aa077a1fc2af6c6af39b",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-09-30T06:11:01Z",
    "title_canon_sha256": "2d75e98c101f72e2b16e5c1305c02f98770e4928d2266c5f7bcbd6b693607c65"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.14865",
    "kind": "arxiv",
    "version": 1
  }
}