Pith Number

pith:ITJ7SNII

pith:2025:ITJ7SNIISNOXSM43EUYNMS6WP5

not attested not anchored not stored refs pending

A Tentative Detection of a Point Source in the Disk Gap of HD 100546 with VLT/SPHERE-IRDIS Sparse Aperture Masking Interferometry

Brodie J. Norfolk, Dori Blakely, Doug Johnstone, Jean-Philippe Berger, Jens Kammerer, Myriam Benisty, Tomas Stolker, William Thompson

arxiv:2502.07759 v1 · 2025-02-11 · astro-ph.SR · astro-ph.EP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ITJ7SNIISNOXSM43EUYNMS6WP5}

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	2026-07-05T10:12:53.527824Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

44d3f93508935d79339b2530d64bd67f625a52afa16f9a736afe91404d36675d

Aliases

arxiv: 2502.07759 · arxiv_version: 2502.07759v1 · doi: 10.48550/arxiv.2502.07759 · pith_short_12: ITJ7SNIISNOX · pith_short_16: ITJ7SNIISNOXSM43 · pith_short_8: ITJ7SNII

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/ITJ7SNIISNOXSM43EUYNMS6WP5 \
  | 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: 44d3f93508935d79339b2530d64bd67f625a52afa16f9a736afe91404d36675d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f735e59a440c2da6cc77f0c748acd178f435cd246f632dfcf077bfea32fe265b",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2025-02-11T18:40:47Z",
    "title_canon_sha256": "086751b60458a043d92a61c7b5baf54358fda221596a7415ffddd5f55bc87f5e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.07759",
    "kind": "arxiv",
    "version": 1
  }
}