Pith Number

pith:BH4ELGWE

pith:2026:BH4ELGWEGCF7ABXC3RPBV4JB42

not attested not anchored not stored refs pending

Ground control to major time-lag: on-sky results of data-driven predictive wavefront control at Keck Observatory

Antonin Bouchez, Avinash Surendran, Charlotte Guthery, Charlotte Z. Bond, Eduardo Marin, Emiel Por, Jules Fowler, Maaike A. M. van Kooten, Mahawa Cisse, Maissa Salama, Max Service, Nour Skaf, Rebeca Jensen-Clem, Sylvain Cetre, Will Gauvin

arxiv:2606.20838 v1 · 2026-06-18 · 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{BH4ELGWEGCF7ABXC3RPBV4JB42}

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	2026-06-23T00:12:00.389137Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

09f8459ac4308bf006e2dc5e1af121e6b188f550893cab8c8d92ffe4d4cc2c31

Aliases

arxiv: 2606.20838 · arxiv_version: 2606.20838v1 · doi: 10.48550/arxiv.2606.20838 · pith_short_12: BH4ELGWEGCF7 · pith_short_16: BH4ELGWEGCF7ABXC · pith_short_8: BH4ELGWE

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/BH4ELGWEGCF7ABXC3RPBV4JB42 \
  | 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: 09f8459ac4308bf006e2dc5e1af121e6b188f550893cab8c8d92ffe4d4cc2c31

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "639c3b97163880c813abed9b40912d294d80ae67f2f340ff71da0b3d841e55ef",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2026-06-18T18:24:36Z",
    "title_canon_sha256": "aae8a8536abb3a308f81175bfc0528039611222ff5b6b96665491174bb6c7a05"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.20838",
    "kind": "arxiv",
    "version": 1
  }
}