Pith Number

pith:XFKJUZL2

pith:2018:XFKJUZL2D5EZPMUWPBXTSWPQVB

not attested not anchored not stored refs pending

Superresolution Interferometric Imaging with Sparse Modeling Using Total Squared Variation --- Application to Imaging the Black Hole Shadow

Fumie Tazaki, Hung-Yi Pu, Kazuki Kuramochi, Kazunori Akiyama, Keiichi Asada, Mareki Honma, Shiro Ikeda, Vincent L. Fish

arxiv:1802.05783 v2 · 2018-02-15 · astro-ph.IM · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XFKJUZL2D5EZPMUWPBXTSWPQVB}

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	2026-05-18T00:14:08.493360Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b9549a657a1f4997b296786f3959f0a84bb33d50c9873142137db4ea9cb675d9

Aliases

arxiv: 1802.05783 · arxiv_version: 1802.05783v2 · doi: 10.48550/arxiv.1802.05783 · pith_short_12: XFKJUZL2D5EZ · pith_short_16: XFKJUZL2D5EZPMUW · pith_short_8: XFKJUZL2

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/XFKJUZL2D5EZPMUWPBXTSWPQVB \
  | 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: b9549a657a1f4997b296786f3959f0a84bb33d50c9873142137db4ea9cb675d9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f9c38a76f919283e6c49eb4b42526c28406943a8f445daf3865429047b090ee8",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2018-02-15T22:38:57Z",
    "title_canon_sha256": "e4baa9606e7c7878359e7d3ee4c6564becb4a3feb9fd8a3d5aa04658fe1f4676"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.05783",
    "kind": "arxiv",
    "version": 2
  }
}