Pith Number

pith:EY66RVRL

pith:2003:EY66RVRLSNPAILHTO4ALPNMMIV

not attested not anchored not stored refs pending

Halting planet migration by photoevaporation from the central source

Doug Johnstone, Isamu Matsuyama, Norman Murray

arxiv:astro-ph/0302042 v1 · 2003-02-04 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EY66RVRLSNPAILHTO4ALPNMMIV}

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	2026-07-04T16:36:25.984749Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

263de8d62b935e042cf37700b7b58c4562f886347e6e819d54fb51e8886b449a

Aliases

arxiv: astro-ph/0302042 · arxiv_version: astro-ph/0302042v1 · doi: 10.48550/arxiv.astro-ph/0302042 · pith_short_12: EY66RVRLSNPA · pith_short_16: EY66RVRLSNPAILHT · pith_short_8: EY66RVRL

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/EY66RVRLSNPAILHTO4ALPNMMIV \
  | 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: 263de8d62b935e042cf37700b7b58c4562f886347e6e819d54fb51e8886b449a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5e30e3f8fc0d1fb187c5618fae6cade860e6e934144e1f90dace542f131c9f8d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-02-04T01:50:19Z",
    "title_canon_sha256": "12e7d92713bdacb8626abd7b9ae93f82ba40028eae8b9719855f2087a53f66c7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0302042",
    "kind": "arxiv",
    "version": 1
  }
}