Pith Number

pith:KWDHBQZU

pith:2013:KWDHBQZUFMZEGINF26732Y7HBX

not attested not anchored not stored refs pending

Computer vision applications for coronagraphic optical alignment and image processing

Bruce A. Macintosh, Dmitry Savransky, Lisa A. Poyneer, Sandrine J. Thomas

arxiv:1305.1916 v1 · 2013-05-08 · 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{KWDHBQZUFMZEGINF26732Y7HBX}

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	2026-05-18T03:26:10.832103Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

558670c3342b324321a5d7bfbd63e70dfa226be53e6e366bd08c27a2ae74c8d5

Aliases

arxiv: 1305.1916 · arxiv_version: 1305.1916v1 · doi: 10.48550/arxiv.1305.1916 · pith_short_12: KWDHBQZUFMZE · pith_short_16: KWDHBQZUFMZEGINF · pith_short_8: KWDHBQZU

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/KWDHBQZUFMZEGINF26732Y7HBX \
  | 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: 558670c3342b324321a5d7bfbd63e70dfa226be53e6e366bd08c27a2ae74c8d5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "32c184261124dd5b5a6470c2f4d61e896843cf3b223356594c6ff23c026d7a2a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2013-05-08T19:00:54Z",
    "title_canon_sha256": "2b6b6785f7d3bb6d79439ee865c033e8db168f86417b0ea8f61ff09a4eb2ba99"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.1916",
    "kind": "arxiv",
    "version": 1
  }
}