Pith Number

pith:SPBXYZ45

pith:2018:SPBXYZ45MEIKSDT6K3ZYCIVSTL

not attested not anchored not stored refs pending

AARTFAAC Flux Density Calibration and Northern Hemisphere Catalogue at 60 MHz

Antonia Rowlinson, Folkert Huizinga, Gijs Molenaar, Mark Kuiack, Peeyush Prasad, Ralph A.M.J. Wijers

arxiv:1810.06430 v1 · 2018-10-15 · 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{SPBXYZ45MEIKSDT6K3ZYCIVSTL}

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	2026-05-18T00:02:30.157782Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

93c37c679d6110a90e7e56f38122b29ae0fed8121833be68b615d7f48c9dd802

Aliases

arxiv: 1810.06430 · arxiv_version: 1810.06430v1 · doi: 10.48550/arxiv.1810.06430 · pith_short_12: SPBXYZ45MEIK · pith_short_16: SPBXYZ45MEIKSDT6 · pith_short_8: SPBXYZ45

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/SPBXYZ45MEIKSDT6K3ZYCIVSTL \
  | 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: 93c37c679d6110a90e7e56f38122b29ae0fed8121833be68b615d7f48c9dd802

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "df5ff7e19d48d9ffbd4e4f5f6e9ba181801c0b12257b14099b54c4e90c906c36",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2018-10-15T14:54:42Z",
    "title_canon_sha256": "8c44f747a3e992ca29aaa832842569bfcfc0cd4592b04b4ec2d4d163e91087fa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.06430",
    "kind": "arxiv",
    "version": 1
  }
}