Pith Number

pith:TOC6RYVM

pith:2019:TOC6RYVMJPQK3IDWHAIY76LFMV

not attested not anchored not stored refs pending

Dark Hole Maintenance and A Posteriori Intensity Estimation in the Presence of Speckle Drift in a High-Contrast Space Coronagraph

Leonid Pogorelyuk, N. Jeremy Kasdin

arxiv:1902.01880 v1 · 2019-02-05 · 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{TOC6RYVMJPQK3IDWHAIY76LFMV}

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	2026-05-17T23:51:52.103029Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9b85e8e2ac4be0ada07638118ff965654e6161c09bc2c9f74ce92b49aabce3f3

Aliases

arxiv: 1902.01880 · arxiv_version: 1902.01880v1 · doi: 10.48550/arxiv.1902.01880 · pith_short_12: TOC6RYVMJPQK · pith_short_16: TOC6RYVMJPQK3IDW · pith_short_8: TOC6RYVM

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/TOC6RYVMJPQK3IDWHAIY76LFMV \
  | 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: 9b85e8e2ac4be0ada07638118ff965654e6161c09bc2c9f74ce92b49aabce3f3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8fe6606c51639943b108028e2205269b6f0759373bf121daaa5ddb474b7c56f3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2019-02-05T19:29:27Z",
    "title_canon_sha256": "9ed987c0b7d8d5989d3946b2cc107d085f5831854da5c18df75c26e62cdd3633"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.01880",
    "kind": "arxiv",
    "version": 1
  }
}