Pith Number

pith:ZY7KW5DW

pith:2026:ZY7KW5DWBPT36YCJBBVCLBEA45

not attested not anchored not stored refs pending

Balmer decrements as a new diagnostic for period-bounce Cataclysmic Variable stars

Beate Stelzer (1), Daniela Mu\~noz-Giraldo (1) ((1) Institut f\"ur Astronomie und Astrophysik, Eberhard Karls Universit\"at T\"ubingen), Santiago Hern\'andez-D\'iaz (1)

arxiv:2606.09627 v1 · 2026-06-08 · 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{ZY7KW5DWBPT36YCJBBVCLBEA45}

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	2026-06-09T02:08:59.778151Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ce3eab74760be7bf6049086a258480e7647ea09453eda34c0ee7ab1ed1eb436e

Aliases

arxiv: 2606.09627 · arxiv_version: 2606.09627v1 · doi: 10.48550/arxiv.2606.09627 · pith_short_12: ZY7KW5DWBPT3 · pith_short_16: ZY7KW5DWBPT36YCJ · pith_short_8: ZY7KW5DW

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/ZY7KW5DWBPT36YCJBBVCLBEA45 \
  | 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: ce3eab74760be7bf6049086a258480e7647ea09453eda34c0ee7ab1ed1eb436e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f8070a64f7ec4524af7c706c61b99bad51ddc868ac40fd93f28dfad794248801",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2026-06-08T15:27:42Z",
    "title_canon_sha256": "99128be31d43bc5873c8b0c2d42c54eba54aeea341cc96154515a467a95ecb35"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.09627",
    "kind": "arxiv",
    "version": 1
  }
}