Pith Number

pith:3IY6S2CI

pith:2010:3IY6S2CIWJYNZHWZH26YFANSZ6

not attested not anchored not stored refs pending

FFREE: a Fresnel-FRee Experiment for EPICS, the EELT planets imager

Alain Delboulb\'e, Christophe V\'erinaud, Emmanuel Aller-Carpentier, G\'erard Zins, Jacopo Antichi, Jean-Fran\c{c}ois Sauvage, Jean-Luc Beuzit, Markus Kasper, Norbert Hubin, Olivier Preis, Patrick Rabou, Sarah Dandy, Thierry Fusco

arxiv:1009.3474 v1 · 2010-09-17 · 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{3IY6S2CIWJYNZHWZH26YFANSZ6}

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	2026-07-05T07:17:50.304644Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

da31e96848b270dc9ed93ebd8281b2cfaadbabbbc42120d3d08435253d860ee1

Aliases

arxiv: 1009.3474 · arxiv_version: 1009.3474v1 · doi: 10.48550/arxiv.1009.3474 · pith_short_12: 3IY6S2CIWJYN · pith_short_16: 3IY6S2CIWJYNZHWZ · pith_short_8: 3IY6S2CI

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/3IY6S2CIWJYNZHWZH26YFANSZ6 \
  | 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: da31e96848b270dc9ed93ebd8281b2cfaadbabbbc42120d3d08435253d860ee1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5bede0de95852c3f6a6582c50630a3da5285df61c32bcc400c4f3d32b0354254",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2010-09-17T17:37:57Z",
    "title_canon_sha256": "6ceb340a250e1b9a561422c008313f6f9c672590343325cf89455047db5575f2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.3474",
    "kind": "arxiv",
    "version": 1
  }
}