Pith Number

pith:LDUTL4H4

pith:2019:LDUTL4H4GHZJMZBMPWINNBSURJ

not attested not anchored not stored refs pending

UCIRC2: An Infrared Cloud Monitor for EUSO-SPB2

Alexa Bukowski, Angela V. Olinto, Emily Donovan, Kameron Mehling, Khadijat Durojaiye, Noah Friedlander, Rebecca Diesing, Seamus Flannery, Stephan Meyer

arxiv:1909.02663 v1 · 2019-09-05 · 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{LDUTL4H4GHZJMZBMPWINNBSURJ}

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	2026-07-05T00:02:41.616075Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

58e935f0fc31f296642c7d90d686548a5194214afbaddd61fbc8d7cd36784a76

Aliases

arxiv: 1909.02663 · arxiv_version: 1909.02663v1 · doi: 10.48550/arxiv.1909.02663 · pith_short_12: LDUTL4H4GHZJ · pith_short_16: LDUTL4H4GHZJMZBM · pith_short_8: LDUTL4H4

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/LDUTL4H4GHZJMZBMPWINNBSURJ \
  | 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: 58e935f0fc31f296642c7d90d686548a5194214afbaddd61fbc8d7cd36784a76

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0af42cf7e8ccd3a5bc65a2bf10799abfd7cfc7b06d525788dc7faf865bd9c6e2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2019-09-05T22:49:38Z",
    "title_canon_sha256": "0e5ee82e7fc9ad50da6e0eb27bb281d5d2abe6a368616e078d691ed9ade8f02a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.02663",
    "kind": "arxiv",
    "version": 1
  }
}