Pith Number

pith:LTH7OMMP

pith:2002:LTH7OMMPDP3I4IJBCRJVDGOQFK

not attested not anchored not stored refs pending

The Fizeau Interferometer Testbed

Gregory Solyar, Hubert Huet, Joe Marzouk, Kenneth G. Carpenter, Richard G. Lyon, Xiaolei Zhang

arxiv:astro-ph/0212439 v1 · 2002-12-19 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LTH7OMMPDP3I4IJBCRJVDGOQFK}

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	2026-07-04T14:12:31.152332Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5ccff7318f1bf68e212114535199d02a94c99cfcf8f39fb2299ce0f801238f32

Aliases

arxiv: astro-ph/0212439 · arxiv_version: astro-ph/0212439v1 · doi: 10.48550/arxiv.astro-ph/0212439 · pith_short_12: LTH7OMMPDP3I · pith_short_16: LTH7OMMPDP3I4IJB · pith_short_8: LTH7OMMP

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/LTH7OMMPDP3I4IJBCRJVDGOQFK \
  | 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: 5ccff7318f1bf68e212114535199d02a94c99cfcf8f39fb2299ce0f801238f32

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "825e2255639f3647ea414f620fd028c89a43f401e5a66af3be480b207f371271",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-12-19T16:15:18Z",
    "title_canon_sha256": "93cfcbf6ebb55b068ca2b1b0f69c4cbb1305975bea39a85cd9ae31a55464ddb9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0212439",
    "kind": "arxiv",
    "version": 1
  }
}