Pith Number

pith:L4SCJYGO

pith:2011:L4SCJYGOQUO2QQIJAY5AM5UICR

not attested not anchored not stored refs pending

Sparse aperture masking at the VLT I. Faint companion detection limits for the two debris disk stars HD 92945 and HD 141569

A.-M. Lagrange, D. Ehrenreich, M. Ireland, N. Huelamo, P. Amico, P. Tuthill, S. Lacour

arxiv:1107.1426 v1 · 2011-07-07 · astro-ph.IM · astro-ph.SR

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

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	2026-05-18T02:01:21.795562Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5f2424e0ce851da84109063a067688146592217fe9d5ba94efc7d5a9909dc6ee

Aliases

arxiv: 1107.1426 · arxiv_version: 1107.1426v1 · doi: 10.48550/arxiv.1107.1426 · pith_short_12: L4SCJYGOQUO2 · pith_short_16: L4SCJYGOQUO2QQIJ · pith_short_8: L4SCJYGO

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/L4SCJYGOQUO2QQIJAY5AM5UICR \
  | 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: 5f2424e0ce851da84109063a067688146592217fe9d5ba94efc7d5a9909dc6ee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dce5d340e2d44edb66700f18701e8221bf5716a4fcb178d97dc7a03b2f205e03",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2011-07-07T15:28:26Z",
    "title_canon_sha256": "d774c8f6e0ed1c9cb48d4f93968c06069d6c8227da176cb39ef7eeb9f8c98eaa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.1426",
    "kind": "arxiv",
    "version": 1
  }
}