Pith Number

pith:2RQOD5JH

pith:2012:2RQOD5JHXULLN4274OSOBTUXKX

not attested not anchored not stored refs pending

Sparse Aperture Masking Observations of the FL Cha Pre-transitional Disk

Adam L. Kraus, Andres Jordan, Francois Menard, Geoffrey S. Mathews, Hector Canovas, Lucas A. Cieza, Matthias R. Schreiber, Michael J. Ireland, Peter Tuthill, Sebastian Perez, Simon Casassus, Sylvestre Lacour

arxiv:1211.5721 v1 · 2012-11-25 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2RQOD5JHXULLN4274OSOBTUXKX}

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	2026-05-18T01:52:55.427405Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d460e1f527bd16b6f35fe3a4e0ce9755fb565a149d60e98ec5d23db98abe07e8

Aliases

arxiv: 1211.5721 · arxiv_version: 1211.5721v1 · doi: 10.48550/arxiv.1211.5721 · pith_short_12: 2RQOD5JHXULL · pith_short_16: 2RQOD5JHXULLN427 · pith_short_8: 2RQOD5JH

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/2RQOD5JHXULLN4274OSOBTUXKX \
  | 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: d460e1f527bd16b6f35fe3a4e0ce9755fb565a149d60e98ec5d23db98abe07e8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ef0c4dfb755f0ae98c323f9c9c7751f1b9cd296754f3860efb3a38493b182198",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-11-25T03:08:31Z",
    "title_canon_sha256": "42c028bcd9c853604ed7df22b7526d9ffc1c4ac0255a9239af7627f006f84e44"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.5721",
    "kind": "arxiv",
    "version": 1
  }
}