Pith Number

pith:NNM3FMET

pith:2011:NNM3FMETFVT7GLFVMWM7M2ZYSN

not attested not anchored not stored refs pending

A Binary Shaped Mask Coronagraph for a Segmented Pupil

K. Enya, L. Abe

arxiv:1108.3152 v1 · 2011-08-16 · 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{NNM3FMETFVT7GLFVMWM7M2ZYSN}

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	2026-05-18T02:00:53.462809Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6b59b2b0932d67f32cb56599f66b38934b960e39441ee3b42c90e7497e9a84e8

Aliases

arxiv: 1108.3152 · arxiv_version: 1108.3152v1 · doi: 10.48550/arxiv.1108.3152 · pith_short_12: NNM3FMETFVT7 · pith_short_16: NNM3FMETFVT7GLFV · pith_short_8: NNM3FMET

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/NNM3FMETFVT7GLFVMWM7M2ZYSN \
  | 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: 6b59b2b0932d67f32cb56599f66b38934b960e39441ee3b42c90e7497e9a84e8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "072bce31fe80b9bb55a203004b52092b9c15a3c3abc515269384662d85042f32",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2011-08-16T04:33:45Z",
    "title_canon_sha256": "53831a2cf3cd958dd6fe270c1b2bed289ea7ba67e6f0f3c675dfd8b5be21fdab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.3152",
    "kind": "arxiv",
    "version": 1
  }
}