Pith Number

pith:WB2Q4BJN

pith:2026:WB2Q4BJNOR2XXGJ5W5IBLRZB6K

not attested not anchored not stored refs pending

Black Hole Explorer Mission Development in Japan

Akihiro Doi, Aya E. Higuchi, Daniel P. Marrone, Edward Tong, Hannah Rana, Hidetoshi Sano, Janice Houston, Kazuhiro Hada, Kazunori Akiyama, Ken Ohsuga, Kotaro Niinuma, Mareki Honma, Michael D. Johnson, Paul Grimes, Peter Galison, Rebecca Baturin, Shoko Koyama, Takayuki J. Hayashi, Tomohisa Kawashima, Yoshiaki Hagiwara, Yoshinori Uzawa, Yosuke Murayama, Yuh Tsunetoe, Yuto Akiyama

arxiv:2608.00890 v1 · 2026-08-01 · 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{WB2Q4BJNOR2XXGJ5W5IBLRZB6K}

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	2026-08-04T01:55:29.281117Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b0750e052d74757b993db75015c721f293859431c7e8b6aad1308c8e0762aadb

Aliases

arxiv: 2608.00890 · arxiv_version: 2608.00890v1 · doi: 10.48550/arxiv.2608.00890 · pith_short_12: WB2Q4BJNOR2X · pith_short_16: WB2Q4BJNOR2XXGJ5 · pith_short_8: WB2Q4BJN

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/WB2Q4BJNOR2XXGJ5W5IBLRZB6K \
  | 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: b0750e052d74757b993db75015c721f293859431c7e8b6aad1308c8e0762aadb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c8d68f975cdc6b389cca86c97c53b7d5c8e9cde40252b98a5942c8594a472f0e",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2026-08-01T22:57:20Z",
    "title_canon_sha256": "48cabb745a6773bbaf0435f176f1e6291e7537b66049ee66fd3d662d7dfc8146"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2608.00890",
    "kind": "arxiv",
    "version": 1
  }
}