Pith Number

pith:BETL6V7Y

pith:2021:BETL6V7YZ3ZMPY2M6LHXVMMSLX

not attested not anchored not stored refs pending

Lessons learned from SPHERE for the astrometric strategy of the next generation of exoplanet imaging instruments

A. Boccaletti, A. Carlotti, A.-L. Maire, A. Vigan, E. L. Rickman, G. Chauvin, J. H. Girard, J.-U. Pott, L. Burtscher, M. A. Kenworthy, M. Langlois, P. Delorme, P. Kervella, R. Gratton, T. Henning, T. O. B. Schmidt, Z. Wahhaj

arxiv:2107.14341 v1 · 2021-07-29 · astro-ph.IM · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BETL6V7YZ3ZMPY2M6LHXVMMSLX}

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	2026-07-05T03:01:59.125409Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0926bf57f8cef2c7e34cf2cf7ab1925dc08b52633d8de8542936a8fec15aa968

Aliases

arxiv: 2107.14341 · arxiv_version: 2107.14341v1 · doi: 10.48550/arxiv.2107.14341 · pith_short_12: BETL6V7YZ3ZM · pith_short_16: BETL6V7YZ3ZMPY2M · pith_short_8: BETL6V7Y

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/BETL6V7YZ3ZMPY2M6LHXVMMSLX \
  | 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: 0926bf57f8cef2c7e34cf2cf7ab1925dc08b52633d8de8542936a8fec15aa968

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c6226d8b5737801914e1dfb1799bddfdad184d6bfcc459a3e337facd86fce66f",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2021-07-29T21:45:56Z",
    "title_canon_sha256": "315433dbc61441e2ca660dbc1eb4bec23bfd68c501a6708a9ee85bb68fc30299"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.14341",
    "kind": "arxiv",
    "version": 1
  }
}