Pith Number

pith:KTEZMDZK

pith:2009:KTEZMDZKXPMPVP42XIJRB6OIJU

not attested not anchored not stored refs pending

An integrated optics beam combiner for the second generation VLTI instruments

F.Malbet, J-P.Berger, K.Perraut, L.Jocou, M.Benisty, P.Kern, P.Labeye

arxiv:0902.2442 v2 · 2009-02-14 · 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{KTEZMDZKXPMPVP42XIJRB6OIJU}

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	2026-05-18T02:14:47.833368Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

54c9960f2abbd8fabf9aba1310f9c84d25d2bae23b71a095baf405a1c97e0697

Aliases

arxiv: 0902.2442 · arxiv_version: 0902.2442v2 · doi: 10.48550/arxiv.0902.2442 · pith_short_12: KTEZMDZKXPMP · pith_short_16: KTEZMDZKXPMPVP42 · pith_short_8: KTEZMDZK

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/KTEZMDZKXPMPVP42XIJRB6OIJU \
  | 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: 54c9960f2abbd8fabf9aba1310f9c84d25d2bae23b71a095baf405a1c97e0697

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cda0e4a247904d8d8a0925ded89f8b1f7616e0d1a23e880943ea76874c855f00",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2009-02-14T08:44:26Z",
    "title_canon_sha256": "616b4143d86d164857f1626b6ed0242972f9bc7d0a360ac5528c15562e66d4c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.2442",
    "kind": "arxiv",
    "version": 2
  }
}