Pith Number

pith:SB4VEPDO

pith:2010:SB4VEPDOSZWSFOJSMAYQMIE4H6

not attested not anchored not stored refs pending

Transitional and Pre-Transitional disks: Gap Opening by Multiple Planets?

Catherine Espaillat, Lee Hartmann, Nuria Calvet, Richard P. Nelson, Zhaohuan Zhu

arxiv:1012.4395 v1 · 2010-12-20 · astro-ph.SR · 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{SB4VEPDOSZWSFOJSMAYQMIE4H6}

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	2026-05-18T02:04:21.846362Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9079523c6e966d22b932603106209c3f97d8b931454fa2b977ad9a763366d8a0

Aliases

arxiv: 1012.4395 · arxiv_version: 1012.4395v1 · doi: 10.48550/arxiv.1012.4395 · pith_short_12: SB4VEPDOSZWS · pith_short_16: SB4VEPDOSZWSFOJS · pith_short_8: SB4VEPDO

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/SB4VEPDOSZWSFOJSMAYQMIE4H6 \
  | 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: 9079523c6e966d22b932603106209c3f97d8b931454fa2b977ad9a763366d8a0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a3e37e67be6d15da70e610e8d9de42ce76eb2c086b2e61851f1f85705c03ec77",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-12-20T16:45:38Z",
    "title_canon_sha256": "6d785a8091af7b23f7475425cb0cf9ca5310bbbefe4e5a631067acf18992cf26"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1012.4395",
    "kind": "arxiv",
    "version": 1
  }
}