Pith Number

pith:FICZAUKT

pith:2019:FICZAUKTBG7PNBEUMOOA6VHELX

not attested not anchored not stored refs pending

The time evolution of dusty protoplanetary disc radii: observed and physical radii differ

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

arxiv:1905.00019 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{FICZAUKTBG7PNBEUMOOA6VHELX}

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	2026-05-17T23:46:52.175982Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2a0590515309bef68494639c0f54e45dd98439d6de2dd519ffaf4ad2cfb6b9bc

Aliases

arxiv: 1905.00019 · arxiv_version: 1905.00019v1 · doi: 10.48550/arxiv.1905.00019 · pith_short_12: FICZAUKTBG7P · pith_short_16: FICZAUKTBG7PNBEU · pith_short_8: FICZAUKT

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/FICZAUKTBG7PNBEUMOOA6VHELX \
  | 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: 2a0590515309bef68494639c0f54e45dd98439d6de2dd519ffaf4ad2cfb6b9bc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3a90bba9ec946e39b954877109f4e9029213be82ffb0ac4ae7bfe6d7ee18ece3",
    "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": "62bd949246150d19ccb498365ad4df7d2f8a90772a1a216d7dbab2e4d78acc50"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.00019",
    "kind": "arxiv",
    "version": 1
  }
}