Pith Number

pith:RU56ZPZ3

pith:2018:RU56ZPZ3W4VFQXIXQC7KPIKPG2

not attested not anchored not stored refs pending

Towards building a first northern-sky sample of 'Extremely Inverted Spectrum Extragalactic Radio Sources (EISERS)'

Gopal-Krishna, Mukul Mhaskey, Surajit Paul

arxiv:1807.05441 v1 · 2018-07-14 · 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{RU56ZPZ3W4VFQXIXQC7KPIKPG2}

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	2026-05-18T00:10:43.527184Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8d3becbf3bb72a585d1780bea7a14f369298114ee198de3a4e7028803a500854

Aliases

arxiv: 1807.05441 · arxiv_version: 1807.05441v1 · doi: 10.48550/arxiv.1807.05441 · pith_short_12: RU56ZPZ3W4VF · pith_short_16: RU56ZPZ3W4VFQXIX · pith_short_8: RU56ZPZ3

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/RU56ZPZ3W4VFQXIXQC7KPIKPG2 \
  | 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: 8d3becbf3bb72a585d1780bea7a14f369298114ee198de3a4e7028803a500854

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "80e2a3c6119532b583d51a8aacf522ff611e790e6547a9c0f1b08496de513aef",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-07-14T20:54:37Z",
    "title_canon_sha256": "e974775dd27f176150695052953836ac857b3c58c61b79f5e503fe813b90b49b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.05441",
    "kind": "arxiv",
    "version": 1
  }
}