Pith Number

pith:BT7QJJOF

pith:2021:BT7QJJOFNIPJPJSV3BUNBPLVZG

not attested not anchored not stored refs pending

A faint companion around CrA-9: protoplanet or obscured binary?

A. Zurlo, B. Pairet, C. Pinte, D. J. Price, G-D. Marleau, G. Lodato, H. C\'anovas, J. H. Girard, L. Cieza, L. Spina, M.-G. Ubeira-Gabellini, M. Reggiani, N. Van der Marel, O. Absil, P. Delorme, S. Casassus, S. P\'erez, V. Christiaens, Y. Aoyama

arxiv:2102.10288 v1 · 2021-02-20 · astro-ph.EP · 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{BT7QJJOFNIPJPJSV3BUNBPLVZG}

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	2026-07-05T02:16:56.219438Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0cff04a5c56a1e97a655d868d0bd75c99ef54e8e443b52ee30f934fb70b13c3e

Aliases

arxiv: 2102.10288 · arxiv_version: 2102.10288v1 · doi: 10.48550/arxiv.2102.10288 · pith_short_12: BT7QJJOFNIPJ · pith_short_16: BT7QJJOFNIPJPJSV · pith_short_8: BT7QJJOF

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/BT7QJJOFNIPJPJSV3BUNBPLVZG \
  | 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: 0cff04a5c56a1e97a655d868d0bd75c99ef54e8e443b52ee30f934fb70b13c3e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a50fa3991a877ccb762fa39eb7c7f4d830c723242073960735fc2dcfdd4b52d6",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2021-02-20T08:27:14Z",
    "title_canon_sha256": "d284cc12538ccd255c4ae3fcadd0b9fee1925929fac8c608c7f6311ed789fcf7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.10288",
    "kind": "arxiv",
    "version": 1
  }
}