Pith Number

pith:RIU7B722

pith:2009:RIU7B722THRSJVGYMU4MBO46KE

not attested not anchored not stored refs pending

Multi-spectral piston sensor for co-phasing giant segmented mirrors and multi-aperture interferometric arrays

Francois Henault

arxiv:0908.4040 v1 · 2009-08-27 · physics.optics · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RIU7B722THRSJVGYMU4MBO46KE}

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	2026-05-18T02:12:22.070820Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8a29f0ff5a99e324d4d86538c0bb9e5103a0cc756abe74c54c9fdfcdefe64c53

Aliases

arxiv: 0908.4040 · arxiv_version: 0908.4040v1 · doi: 10.48550/arxiv.0908.4040 · pith_short_12: RIU7B722THRS · pith_short_16: RIU7B722THRSJVGY · pith_short_8: RIU7B722

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/RIU7B722THRSJVGYMU4MBO46KE \
  | 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: 8a29f0ff5a99e324d4d86538c0bb9e5103a0cc756abe74c54c9fdfcdefe64c53

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d63fa678ef8350e1cde8c383ff2c7dbdfe1913f5f904d7fdc14227b93ebc8007",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2009-08-27T16:22:48Z",
    "title_canon_sha256": "15da0c3be49538594b3dbe8865ead8d208d585ff1ce2c2c73e2b0e8ad1f7741a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.4040",
    "kind": "arxiv",
    "version": 1
  }
}