Pith Number

pith:ZHCZDYC6

pith:2012:ZHCZDYC6TS7L5LIKA6P2UTK5JE

not attested not anchored not stored refs pending

Active optics Shack-Hartmann sensor: using spot sizes to measure the seeing at the focal plane of a telescope

J. Kolb, J. Navarrete, M. Sarazin, P. Martinez

arxiv:1201.2330 v1 · 2012-01-11 · 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{ZHCZDYC6TS7L5LIKA6P2UTK5JE}

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	2026-05-18T01:58:52.794908Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c9c591e05e9cbebead0a079faa4d5d493715a604118e4a35a34426c57f2369db

Aliases

arxiv: 1201.2330 · arxiv_version: 1201.2330v1 · doi: 10.48550/arxiv.1201.2330 · pith_short_12: ZHCZDYC6TS7L · pith_short_16: ZHCZDYC6TS7L5LIK · pith_short_8: ZHCZDYC6

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/ZHCZDYC6TS7L5LIKA6P2UTK5JE \
  | 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: c9c591e05e9cbebead0a079faa4d5d493715a604118e4a35a34426c57f2369db

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7aa273d76db5ddf6d40f75b8aefcb21876fc357a4ec5df3f0f50aa751b648257",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2012-01-11T15:30:03Z",
    "title_canon_sha256": "2d3c705d6acd6a3ef81be3ddd7dbe4acb479f0c0b18c5faf6c1be7bc86fc976f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.2330",
    "kind": "arxiv",
    "version": 1
  }
}