Pith Number

pith:4L23JBZ4

pith:2013:4L23JBZ44AUABZSCFFZ3JZTPTI

not attested not anchored not stored refs pending

Ultraviolet and visual flux and line variations of one of the least variable Bp stars HD 64740

H. Markova, J. Janik, J. Krticka, J. Zverko, M. Prvak, M. Skarka, Z. Mikulasek

arxiv:1306.2458 v1 · 2013-06-11 · 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{4L23JBZ44AUABZSCFFZ3JZTPTI}

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	2026-05-18T01:49:23.810960Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e2f5b4873ce02800e6422973b4e66f9a0ad049453526a7f33d98021471f6bd5b

Aliases

arxiv: 1306.2458 · arxiv_version: 1306.2458v1 · doi: 10.48550/arxiv.1306.2458 · pith_short_12: 4L23JBZ44AUA · pith_short_16: 4L23JBZ44AUABZSC · pith_short_8: 4L23JBZ4

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/4L23JBZ44AUABZSCFFZ3JZTPTI \
  | 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: e2f5b4873ce02800e6422973b4e66f9a0ad049453526a7f33d98021471f6bd5b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "63990e162339c4139ea19c23fde55c15a42dab7bef74a7181c8b63954c17921a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-06-11T09:12:44Z",
    "title_canon_sha256": "464a5083ecc1a033e23a4fea3228828576834c1ee7aad134d65c3d6e5ca502f0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.2458",
    "kind": "arxiv",
    "version": 1
  }
}