Pith Number

pith:T7Z457RC

pith:2019:T7Z457RCLG5W5TRLCXDQKBCD7J

not attested not anchored not stored refs pending

Amateur telescopes discover a kilometre-sized Kuiper belt object from stellar occultation

F. Usui, J. Watanabe, K. Arimatsu, K. Ichikawa, K. Nagase, K. Tsumura, T. Kotani, T. Ootsubo, T. Wada, Y. Shinnaka

arxiv:1910.09994 v1 · 2019-10-22 · astro-ph.EP · 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{T7Z457RCLG5W5TRLCXDQKBCD7J}

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	2026-07-05T00:14:04.518159Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9ff3cefe2259bb6ece2b15c7050443fa571c9217412ff314cbda3524092a5864

Aliases

arxiv: 1910.09994 · arxiv_version: 1910.09994v1 · doi: 10.48550/arxiv.1910.09994 · pith_short_12: T7Z457RCLG5W · pith_short_16: T7Z457RCLG5W5TRL · pith_short_8: T7Z457RC

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/T7Z457RCLG5W5TRLCXDQKBCD7J \
  | 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: 9ff3cefe2259bb6ece2b15c7050443fa571c9217412ff314cbda3524092a5864

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "70566342773eef568b010a24e0845830c4ecbdeeffcd0f6319e6013124d7a0fa",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2019-10-22T14:11:18Z",
    "title_canon_sha256": "0029de92c64923364db39121900ac1780b9815f0004b983106b29f930c815cb0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1910.09994",
    "kind": "arxiv",
    "version": 1
  }
}