Pith Number

pith:BRAT7EZP

pith:2009:BRAT7EZPVXHLRBHYQCS6MKPQY5

not attested not anchored not stored refs pending

Pulsations and Long-Term Light Variability of Three Candidates to Protoplanetary Nebulae

G. V. Komissarova, N. P. Ikonnikova, V. P. Arkhipova

arxiv:0911.0268 v1 · 2009-11-02 · 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{BRAT7EZPVXHLRBHYQCS6MKPQY5}

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	2026-05-18T02:11:00.748224Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0c413f932fadceb884f880a5e629f0c7764f7f15ce8ed29fb4057458a98192cc

Aliases

arxiv: 0911.0268 · arxiv_version: 0911.0268v1 · doi: 10.48550/arxiv.0911.0268 · pith_short_12: BRAT7EZPVXHL · pith_short_16: BRAT7EZPVXHLRBHY · pith_short_8: BRAT7EZP

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/BRAT7EZPVXHLRBHYQCS6MKPQY5 \
  | 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: 0c413f932fadceb884f880a5e629f0c7764f7f15ce8ed29fb4057458a98192cc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "532c9e9063b754d4b97cb2c41f874ee15894a645cf5ca0c9c30b92e06a18f166",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-11-02T11:27:54Z",
    "title_canon_sha256": "47aa2b94f4d811aec42eafd4acba48002b591a00af4b56ffb426bcdc7412735f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.0268",
    "kind": "arxiv",
    "version": 1
  }
}