Pith Number

pith:J2DAHSFK

pith:2018:J2DAHSFKLL6KMZWDVVQCK4CAJK

not attested not anchored not stored refs pending

Why do protoplanetary disks appear not massive enough to form the known exoplanet population?

(2) Laboratoire Lagrange, A. Morbidelli (2), C.F. Manara (1), OCA Nice), T. Guillot (2) ((1) ESO-Garching

arxiv:1809.07374 v2 · 2018-09-19 · 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{J2DAHSFKLL6KMZWDVVQCK4CAJK}

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	2026-05-18T00:03:01.376013Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4e8603c8aa5afca666c3ad602570404aa7479f0a053e1e6ebe811c8ef3d10965

Aliases

arxiv: 1809.07374 · arxiv_version: 1809.07374v2 · doi: 10.48550/arxiv.1809.07374 · pith_short_12: J2DAHSFKLL6K · pith_short_16: J2DAHSFKLL6KMZWD · pith_short_8: J2DAHSFK

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/J2DAHSFKLL6KMZWDVVQCK4CAJK \
  | 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: 4e8603c8aa5afca666c3ad602570404aa7479f0a053e1e6ebe811c8ef3d10965

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1b407d683e5fddd5f748fbe2b6e95c6247642358f9797f1630e30a917a5a897b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2018-09-19T19:09:33Z",
    "title_canon_sha256": "900afaa4ab6b5e780fd555e7080dd8a4c0b6064884dd402e4b43ef0fa1005d1d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.07374",
    "kind": "arxiv",
    "version": 2
  }
}