Pith Number

pith:M7OHIUVU

pith:2009:M7OHIUVUEIPTQ4E5ILQOWJ54BU

not attested not anchored not stored refs pending

An investigation of lucky imaging techniques

Andrew Smith, Jeremy Bailey, J.H. Hough, Steven Lee

arxiv:0906.3041 v1 · 2009-06-16 · 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{M7OHIUVUEIPTQ4E5ILQOWJ54BU}

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	2026-05-18T02:13:19.593498Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

67dc7452b4221f38709d42e0eb27bc0d012699f37f954777b9af2399d61e9df6

Aliases

arxiv: 0906.3041 · arxiv_version: 0906.3041v1 · doi: 10.48550/arxiv.0906.3041 · pith_short_12: M7OHIUVUEIPT · pith_short_16: M7OHIUVUEIPTQ4E5 · pith_short_8: M7OHIUVU

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/M7OHIUVUEIPTQ4E5ILQOWJ54BU \
  | 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: 67dc7452b4221f38709d42e0eb27bc0d012699f37f954777b9af2399d61e9df6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e548be907e20b8942287ce16f7b8fa5e5e339add4fe93597d66ea196b8deb678",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2009-06-16T22:59:35Z",
    "title_canon_sha256": "cf7851889facf02ad4c54d17c7a8c56c3a3443d7bf57dd9d5fb996ac46d5cd8c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.3041",
    "kind": "arxiv",
    "version": 1
  }
}