Pith Number

pith:K7AZKLRP

pith:2009:K7AZKLRP6N4TN4XLIV334K4N4D

not attested not anchored not stored refs pending

Response of optical hydrogen lines to beam heating: I. Electron beams

J. Kasparova, M. Karlicky, M. Varady, P. Heinzel, Z. Moravec

arxiv:0904.2084 v1 · 2009-04-14 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{K7AZKLRP6N4TN4XLIV334K4N4D}

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	2026-05-18T02:14:06.108026Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

57c1952e2ff37936f2eb4577be2b8de0eab59e0439d25bbdcf3e71a7ad997bf3

Aliases

arxiv: 0904.2084 · arxiv_version: 0904.2084v1 · doi: 10.48550/arxiv.0904.2084 · pith_short_12: K7AZKLRP6N4T · pith_short_16: K7AZKLRP6N4TN4XL · pith_short_8: K7AZKLRP

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/K7AZKLRP6N4TN4XLIV334K4N4D \
  | 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: 57c1952e2ff37936f2eb4577be2b8de0eab59e0439d25bbdcf3e71a7ad997bf3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3952d800f8cb6bb3e4b858ee75024820bcc650d3bedcf0cdeaa4e973c4fe07a9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-04-14T09:44:09Z",
    "title_canon_sha256": "9bf6f3e58442cc31ae0f4e1e653c06fed4085044e26a3c0c3e1991fb76574f97"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.2084",
    "kind": "arxiv",
    "version": 1
  }
}