Pith Number

pith:DFJD5EYI

pith:2013:DFJD5EYIWM2PJJPPXN7C7E23R6

not attested not anchored not stored refs pending

Optical Design and Active Optics Methods in Astronomy

Gerard R. Lemaitre

arxiv:1303.3782 v1 · 2013-03-15 · 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{DFJD5EYIWM2PJJPPXN7C7E23R6}

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	2026-05-18T01:51:06.841120Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

19523e9308b334f4a5efbb7e2f935b8fb7074018312ab527eee7655ab85e7f92

Aliases

arxiv: 1303.3782 · arxiv_version: 1303.3782v1 · doi: 10.48550/arxiv.1303.3782 · pith_short_12: DFJD5EYIWM2P · pith_short_16: DFJD5EYIWM2PJJPP · pith_short_8: DFJD5EYI

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/DFJD5EYIWM2PJJPPXN7C7E23R6 \
  | 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: 19523e9308b334f4a5efbb7e2f935b8fb7074018312ab527eee7655ab85e7f92

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "99592171a13a0b8300ee0ba475dacb6dea660c523357e4579d70231624aaaccd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2013-03-15T14:32:56Z",
    "title_canon_sha256": "be9d4608a0d5d67fb6b2d78cc3fd7e94bc5e4cb3352598c92c2b629082c61589"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.3782",
    "kind": "arxiv",
    "version": 1
  }
}