Pith Number

pith:2FS3RDJ4

pith:2018:2FS3RDJ4XZOFTL7WRTZQQUVGYV

not attested not anchored not stored refs pending

Rings and gaps in protoplanetary disks: planets or snowlines?

(2) Institute for Astronomy, (3) MPE Garching), Jonathan Williams (2), Nienke van der Marel (1), Simon Bruderer (3) ((1) NRC Herzberg Astronomy & Astrophysics, University of Hawaii

arxiv:1810.05614 v1 · 2018-10-12 · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2FS3RDJ4XZOFTL7WRTZQQUVGYV}

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	2026-05-18T00:01:26.133920Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d165b88d3cbe5c59aff68cf30852a6c55a58dfa8014ca1cc7861e5611e95fff7

Aliases

arxiv: 1810.05614 · arxiv_version: 1810.05614v1 · doi: 10.48550/arxiv.1810.05614 · pith_short_12: 2FS3RDJ4XZOF · pith_short_16: 2FS3RDJ4XZOFTL7W · pith_short_8: 2FS3RDJ4

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/2FS3RDJ4XZOFTL7WRTZQQUVGYV \
  | 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: d165b88d3cbe5c59aff68cf30852a6c55a58dfa8014ca1cc7861e5611e95fff7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "20b875561bda30f4a99842fac4b05dc9910f623c339284ef9ed0cc6aff9358be",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2018-10-12T17:15:09Z",
    "title_canon_sha256": "0854bfabce60c637359626b6199bdd8e962f3dcecbdca87342a723a433bab50b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.05614",
    "kind": "arxiv",
    "version": 1
  }
}