Pith Number

pith:KJKTVELB

pith:2008:KJKTVELBWC6ICPQMGNW2LUZDF4

not attested not anchored not stored refs pending

Altitude dependence of fluorescence light emission by extensive air showers

B. Keilhauer, H. O. Klages, J. Bluemer, R. Engel

arxiv:0801.4200 v4 · 2008-01-28 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KJKTVELBWC6ICPQMGNW2LUZDF4}

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	2026-07-04T15:34:02.146091Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

52553a9161b0bc813e0c336da5d3232f2084634f07e13c9e101f6fc3f9b52f0a

Aliases

arxiv: 0801.4200 · arxiv_version: 0801.4200v4 · doi: 10.48550/arxiv.0801.4200 · pith_short_12: KJKTVELBWC6I · pith_short_16: KJKTVELBWC6ICPQM · pith_short_8: KJKTVELB

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/KJKTVELBWC6ICPQMGNW2LUZDF4 \
  | 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: 52553a9161b0bc813e0c336da5d3232f2084634f07e13c9e101f6fc3f9b52f0a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b92daccdd059c8cb678299d3dc28e107289e65d643908b9a4677eb9cab91a352",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-01-28T07:41:00Z",
    "title_canon_sha256": "583cafbf8d15e7487a071d8c5e8ffb0756b291929784cb841296feff7d38f24f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0801.4200",
    "kind": "arxiv",
    "version": 4
  }
}