Pith Number

pith:GBSRBA3Z

pith:2019:GBSRBA3ZMLC7RXNLWV7O67KD63

not attested not anchored not stored refs pending

On the millimetre continuum flux-radius correlation of proto-planetary discs

Cathie Clarke, Giovanni P. Rosotti, Giuseppe Lodato, Leonardo Testi, Marco Tazzari, Richard A. Booth

arxiv:1905.00021 v1 · 2019-04-30 · astro-ph.EP · astro-ph.GA · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GBSRBA3ZMLC7RXNLWV7O67KD63}

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	2026-05-17T23:46:46.804637Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

306510837962c5f8ddabb57eef7d43f6fd4e6e0c48f869456325f9bb61d03fcc

Aliases

arxiv: 1905.00021 · arxiv_version: 1905.00021v1 · doi: 10.48550/arxiv.1905.00021 · pith_short_12: GBSRBA3ZMLC7 · pith_short_16: GBSRBA3ZMLC7RXNL · pith_short_8: GBSRBA3Z

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/GBSRBA3ZMLC7RXNLWV7O67KD63 \
  | 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: 306510837962c5f8ddabb57eef7d43f6fd4e6e0c48f869456325f9bb61d03fcc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c13f3f8c17d32c8faaad56b51d3b5f59f387f32dc90102cfe29397202bd9e19",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2019-04-30T18:00:00Z",
    "title_canon_sha256": "ddb9e38543479048e76cc6be6671ca567cb2766c6297cc7c6f6d44954cc89929"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.00021",
    "kind": "arxiv",
    "version": 1
  }
}