Pith Number

pith:TZ4MFSDN

pith:2020:TZ4MFSDNH3DRJZYS73Q4COC4B2

not attested not anchored not stored refs pending

K-Stacker, an algorithm to hack the orbital parameters of planets hidden in high-contrast imaging. First applications to VLT SPHERE multi-epoch observations

A. Boccaletti, A. Cheetham, A.L. Maire, A.M. Lagrange, A. Schneeberger, A. Vigan, A. Zurlo, C. Desgrange, D. Estevez, D. Le Mignant, D. Mesa, D. Mouillet, E. Sissa, F. Menard, G. Chauvin, H. Beust, H. Le Coroller, J. Bec-Canet, J.C. Lambert, J.F. Sauvage, J.L. Beuzit, J. Ramos, K. Dohlen, L. Arnold, M. Bonavita, M. Bonnefoy, M. Devinat, M. Feldt, M. Janson, M. Langlois, M. Meyer, M. Nowak, M. Samland, P. Delorme, P. Vernazza, R. Galicher, R. Gratton, R. Ligi, S. Desidera, S. Rochat, T. Fenouillet, T. Fusco, V. DOrazi

arxiv:2004.12878 v1 · 2020-04-27 · astro-ph.EP · astro-ph.IM · 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{TZ4MFSDNH3DRJZYS73Q4COC4B2}

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	2026-07-05T01:20:59.715580Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9e78c2c86d3ec714e712fee1c1385c0eacf1c188ccff267b349322579af210b0

Aliases

arxiv: 2004.12878 · arxiv_version: 2004.12878v1 · doi: 10.48550/arxiv.2004.12878 · pith_short_12: TZ4MFSDNH3DR · pith_short_16: TZ4MFSDNH3DRJZYS · pith_short_8: TZ4MFSDN

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/TZ4MFSDNH3DRJZYS73Q4COC4B2 \
  | 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: 9e78c2c86d3ec714e712fee1c1385c0eacf1c188ccff267b349322579af210b0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9d0386982060d2edbcdb55cc733c39e0bf7c579e17f9226ae2b6e132895ecafa",
    "cross_cats_sorted": [
      "astro-ph.IM",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2020-04-27T15:36:07Z",
    "title_canon_sha256": "40991aeb392ef99e811f5cefaa72b6d13e318d92f45d2248abb746225df8a46d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.12878",
    "kind": "arxiv",
    "version": 1
  }
}