Pith Number

pith:SCVZ3N7R

pith:2012:SCVZ3N7R7UDAYTDPRFU64A4XTC

not attested not anchored not stored refs pending

The ESPRI project: astrometric exoplanet search with PRIMA I. Instrument description and performance of first light observations

A. Kaminski, A. Merand, A. Mueller, A. Quirrenbach, B. Chazelas, B. Tubbs, C. Maire, C. Schmid, D. Megevand, D. Queloz, D. Segransan, D. Sosnowska, F. Delplancke, F. Derie, F. Pepe, G.T. van Belle, H. Baumeister, J.-M. Moresmau, J. Sahlmann, J. Setiawan, K. Wagner, L. Andolfato, L. Sache, L. Weber, L. Zago, M. Fleury, M. Mohler, N. Di Lieto, N.M. Elias II, N. Schuhler, N. Zimmerman, P. Bizenberger, P. Muellhaupt, R. Abuter, R. Koehler, R. Launhardt, S. Leveque, S. Reffert, T. Henning, T.P. Duc, T. Schulze-Hartung, U. Graser, V. Naranjo, Y. Michellod, Y. Salvade

arxiv:1212.2227 v1 · 2012-12-10 · astro-ph.IM · astro-ph.EP · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SCVZ3N7R7UDAYTDPRFU64A4XTC}

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	2026-05-18T01:52:40.324722Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

90ab9db7f1fd060c4c6f8969ee0397989b1a9515342fd341cedd64b7ae345cde

Aliases

arxiv: 1212.2227 · arxiv_version: 1212.2227v1 · doi: 10.48550/arxiv.1212.2227 · pith_short_12: SCVZ3N7R7UDA · pith_short_16: SCVZ3N7R7UDAYTDP · pith_short_8: SCVZ3N7R

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/SCVZ3N7R7UDAYTDPRFU64A4XTC \
  | 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: 90ab9db7f1fd060c4c6f8969ee0397989b1a9515342fd341cedd64b7ae345cde

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dca840d25fcedc48e6096714ffa446cbe41be507711b1d9a8cd30788d8fcc102",
    "cross_cats_sorted": [
      "astro-ph.EP",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2012-12-10T21:41:17Z",
    "title_canon_sha256": "adc4080b19c10dc2f0258872148dad57318bd4a8d05ce651ef07f5a86b8de091"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.2227",
    "kind": "arxiv",
    "version": 1
  }
}