Pith Number

pith:2BIY3ZPV

pith:2011:2BIY3ZPV2HHQDLF4HMPJ67L2GJ

not attested not anchored not stored refs pending

Band-Limited Coronagraphs using a halftone-dot process: II. Advances and laboratory results for arbitrary telescope apertures

C. Dorrer, M. Kasper, P. Martinez

arxiv:1111.6956 v1 · 2011-11-29 · 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{2BIY3ZPV2HHQDLF4HMPJ67L2GJ}

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	2026-05-18T01:59:21.753390Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d0518de5f5d1cf01acbc3b1e9f7d7a327ee09baecc3ed1b95439c26f848cc67b

Aliases

arxiv: 1111.6956 · arxiv_version: 1111.6956v1 · doi: 10.48550/arxiv.1111.6956 · pith_short_12: 2BIY3ZPV2HHQ · pith_short_16: 2BIY3ZPV2HHQDLF4 · pith_short_8: 2BIY3ZPV

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/2BIY3ZPV2HHQDLF4HMPJ67L2GJ \
  | 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: d0518de5f5d1cf01acbc3b1e9f7d7a327ee09baecc3ed1b95439c26f848cc67b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cab9134e812ae1aec2886b0b1a595f829c3d6b3d9cd54ad158bb685230f8edde",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2011-11-29T20:18:10Z",
    "title_canon_sha256": "864b98d160a22666002827e7cad9e9b650c4dc43d9e4637302010f7eddf13f41"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.6956",
    "kind": "arxiv",
    "version": 1
  }
}