Pith Number

pith:42FBQQZO

pith:2005:42FBQQZOJQ6GWZHA2CEZFUGNUI

not attested not anchored not stored refs pending

Lucky Imaging: High Angular Resolution Imaging in the Visible from the Ground

(2) Cavendish Laboratory, Cambridge, Cambridge), Craig D. Mackay (1), John E. Baldwin (2) ((1) IOA, Nicholas M. Law (1)

arxiv:astro-ph/0507299 v1 · 2005-07-13 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{42FBQQZOJQ6GWZHA2CEZFUGNUI}

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	2026-07-04T14:48:28.790378Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e68a18432e4c3c6b64e0d08992d0cda21b6fc0cceda41eb89c2b536ffcf62851

Aliases

arxiv: astro-ph/0507299 · arxiv_version: astro-ph/0507299v1 · doi: 10.48550/arxiv.astro-ph/0507299 · pith_short_12: 42FBQQZOJQ6G · pith_short_16: 42FBQQZOJQ6GWZHA · pith_short_8: 42FBQQZO

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/42FBQQZOJQ6GWZHA2CEZFUGNUI \
  | 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: e68a18432e4c3c6b64e0d08992d0cda21b6fc0cceda41eb89c2b536ffcf62851

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aa8bd30caa27b4d511e23d08064b6828400a05097bffcbd9761c950204ac75eb",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-07-13T11:16:01Z",
    "title_canon_sha256": "12d6e6c0287a60dfbe59c96f1c39cdf75d7216c28fb7209ec4abdffbe5fa0a73"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0507299",
    "kind": "arxiv",
    "version": 1
  }
}