Pith Number

pith:PIP4UZCS

pith:2019:PIP4UZCSVMWDFZPO3RTQBJ6IT3

not attested not anchored not stored refs pending

A new sample of southern radio galaxies: Host galaxy masses and star-formation rates

2), 3), (3) South African Radio Astronomy Observatory), Kim McAlpine (1, Matthew Prescott (1) ((1) University of the Western Cape (2) University of Oxford, Matt J. Jarvis (1, Stephen Fine (1), Takalani Marubini (1), Tom Mauch (3)

arxiv:1908.08761 v1 · 2019-08-23 · 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{PIP4UZCSVMWDFZPO3RTQBJ6IT3}

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	2026-07-05T00:06:55.351562Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7a1fca6452ab2c32e5eedc6700a7c89ef806134f262ab222c5b1010770c93ec2

Aliases

arxiv: 1908.08761 · arxiv_version: 1908.08761v1 · doi: 10.48550/arxiv.1908.08761 · pith_short_12: PIP4UZCSVMWD · pith_short_16: PIP4UZCSVMWDFZPO · pith_short_8: PIP4UZCS

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/PIP4UZCSVMWDFZPO3RTQBJ6IT3 \
  | 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: 7a1fca6452ab2c32e5eedc6700a7c89ef806134f262ab222c5b1010770c93ec2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "da2e2cfa2cb9e864620cb64dc1c5ac0f0ff03b235c15decadb2931f8937838fb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-08-23T11:21:05Z",
    "title_canon_sha256": "26d784b732c548a056e406f0b0be1ff4af783c628fe31dd96f92aab23f6d0fa3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.08761",
    "kind": "arxiv",
    "version": 1
  }
}