Pith Number

pith:SXAE7EU2

pith:2017:SXAE7EU2B7QX356AKB4COTTCWJ

not attested not anchored not stored refs pending

A radio spectral index map and catalogue at 147-1400 MHz covering 80 per cent of the sky

D. A. Frail, F. De Gasperin, H. T. Intema

arxiv:1711.11367 v2 · 2017-11-30 · astro-ph.IM · astro-ph.CO · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SXAE7EU2B7QX356AKB4COTTCWJ}

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	2026-05-18T00:26:23.498648Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

95c04f929a0fe17df7c05078274e62b2786b6c69c138f33b2452458d2ca26814

Aliases

arxiv: 1711.11367 · arxiv_version: 1711.11367v2 · doi: 10.48550/arxiv.1711.11367 · pith_short_12: SXAE7EU2B7QX · pith_short_16: SXAE7EU2B7QX356A · pith_short_8: SXAE7EU2

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/SXAE7EU2B7QX356AKB4COTTCWJ \
  | 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: 95c04f929a0fe17df7c05078274e62b2786b6c69c138f33b2452458d2ca26814

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8fa7bd7c65ab400b8eef6578d13cad92a6a665f6c82ade84b3eddc57535b55bd",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2017-11-30T13:12:14Z",
    "title_canon_sha256": "694547d0c21a27f6f09fcce28f75e2f27bec60cfa0d83d03e6200bb9a94a7543"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.11367",
    "kind": "arxiv",
    "version": 2
  }
}