Pith Number

pith:CAPYFAXU

pith:2009:CAPYFAXUEWAWXV7SEU5IVLCHS2

not attested not anchored not stored refs pending

A Spitzer Census of Transitional Protoplanetary Disks with AU-Scale Inner Holes

James Muzerolle, Jesus Hernandez, Lori E. Allen, Robert A. Gutermuth, S. Thomas Megeath

arxiv:0911.2704 v1 · 2009-11-13 · 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{CAPYFAXUEWAWXV7SEU5IVLCHS2}

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	2026-05-18T02:34:05.496061Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

101f8282f425816bd7f2253a8aac47969fb0674800ed65a64cdca760628ef9f7

Aliases

arxiv: 0911.2704 · arxiv_version: 0911.2704v1 · doi: 10.48550/arxiv.0911.2704 · pith_short_12: CAPYFAXUEWAW · pith_short_16: CAPYFAXUEWAWXV7S · pith_short_8: CAPYFAXU

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/CAPYFAXUEWAWXV7SEU5IVLCHS2 \
  | 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: 101f8282f425816bd7f2253a8aac47969fb0674800ed65a64cdca760628ef9f7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3ac0dc850ca35d63cd43f9d804567eb07438385a25ebb7dc60c2ef97db3d28c5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-11-13T21:00:41Z",
    "title_canon_sha256": "fea4eda2168f9d0634153764ecd0f2986c58776227a8626c9acd0a638530b117"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.2704",
    "kind": "arxiv",
    "version": 1
  }
}