Pith Number

pith:KQG2W5MK

pith:2009:KQG2W5MKLHYSHTXC4S3NL5HTSS

not attested not anchored not stored refs pending

The Jem-Euso Mission

The JEM-EUSO Collaboration, Yoshiyuki Takahashi

arxiv:0910.4187 v1 · 2009-10-21 · astro-ph.HE · 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{KQG2W5MKLHYSHTXC4S3NL5HTSS}

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	2026-05-18T02:11:13.034627Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

540dab758a59f123cee2e4b6d5f4f3949f6bc9749e09479525ebb106ddec74e9

Aliases

arxiv: 0910.4187 · arxiv_version: 0910.4187v1 · doi: 10.48550/arxiv.0910.4187 · pith_short_12: KQG2W5MKLHYS · pith_short_16: KQG2W5MKLHYSHTXC · pith_short_8: KQG2W5MK

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/KQG2W5MKLHYSHTXC4S3NL5HTSS \
  | 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: 540dab758a59f123cee2e4b6d5f4f3949f6bc9749e09479525ebb106ddec74e9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "26f2d0a9437aeb8fc8b940014f0a8e563b888fc2d7623d6cf6d98a0178c80126",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-10-21T23:44:44Z",
    "title_canon_sha256": "d3cf5082752eb9abcff21c9d6713d0521d97b7250bbc800f2b56a903de3cccb9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.4187",
    "kind": "arxiv",
    "version": 1
  }
}