Pith Number

pith:CUGOWXAR

pith:2009:CUGOWXARUKOOGVJJV2X4L5HGQT

not attested not anchored not stored refs pending

A new concept for the combination of optical interferometers and high-resolution spectrographs

A. Quirrenbach, R. N. Tubbs, R. Vink, S. Albrecht

arxiv:0911.0703 v2 · 2009-11-03 · 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{CUGOWXARUKOOGVJJV2X4L5HGQT}

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	2026-05-18T02:34:11.964766Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

150ceb5c11a29ce35529aeafc5f4e684ec0993fe7a5b0b93d20b07daf03ae084

Aliases

arxiv: 0911.0703 · arxiv_version: 0911.0703v2 · doi: 10.48550/arxiv.0911.0703 · pith_short_12: CUGOWXARUKOO · pith_short_16: CUGOWXARUKOOGVJJ · pith_short_8: CUGOWXAR

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/CUGOWXARUKOOGVJJV2X4L5HGQT \
  | 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: 150ceb5c11a29ce35529aeafc5f4e684ec0993fe7a5b0b93d20b07daf03ae084

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dc3507ff43308c28ffa9bdce788fc195a8f4704aa1bc83ec4929b0485216db2c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2009-11-03T23:53:03Z",
    "title_canon_sha256": "5be847959856cfc787482fc1381d18c6c5b502a09a284c6f0fcbeceb723baf83"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.0703",
    "kind": "arxiv",
    "version": 2
  }
}