Pith Number

pith:3KGB2AZO

pith:2012:3KGB2AZO3EQLRN73MIWTD3RTZT

not attested not anchored not stored refs pending

Image quality and high contrast improvements on VLT/NACO

Beno\^it Neichel, Dimitri Mawet, G\'erard Zins, Jared O'Neal, Johann Kolb, Julien H. V. Girard, Markus Kasper, Martin Tourneboeuf, Valentin Christiaens

arxiv:1210.3090 v1 · 2012-10-10 · astro-ph.IM · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3KGB2AZO3EQLRN73MIWTD3RTZT}

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	2026-05-18T03:43:29.118685Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

da8c1d032ed920b8b7fb622d31ee33ccc4940121ecd9c2280f122ecfc9a1c99a

Aliases

arxiv: 1210.3090 · arxiv_version: 1210.3090v1 · doi: 10.48550/arxiv.1210.3090 · pith_short_12: 3KGB2AZO3EQL · pith_short_16: 3KGB2AZO3EQLRN73 · pith_short_8: 3KGB2AZO

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/3KGB2AZO3EQLRN73MIWTD3RTZT \
  | 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: da8c1d032ed920b8b7fb622d31ee33ccc4940121ecd9c2280f122ecfc9a1c99a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7ebccdb4fd6dcef2cc511d5bcbdaa0377b85d1b48703cefdf13e529ecfef2999",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2012-10-10T23:55:08Z",
    "title_canon_sha256": "574bd500e3adf8062dc6aaa83727df7af5fcecdd7506ab0e03c0b153e83c7486"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.3090",
    "kind": "arxiv",
    "version": 1
  }
}