Pith Number

pith:Y55CK7ZM

pith:2004:Y55CK7ZMH7FKJ6FNI65D2E4T3C

not attested not anchored not stored refs pending

Discovery of a Long-Period Photometric Variation in the V361 Hya Star HS 0702+6043

E. M. Green, G. Fontaine, J. Huber, S. Dreizler, S. J. O'Toole, S. Schuh, U. Heber

arxiv:astro-ph/0411640 v1 · 2004-11-23 · 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{Y55CK7ZMH7FKJ6FNI65D2E4T3C}

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	2026-07-04T14:13:55.495713Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c77a257f2c3fcaa4f8ad47ba3d1393d8a6482742d96a41a5814e45be02cefb65

Aliases

arxiv: astro-ph/0411640 · arxiv_version: astro-ph/0411640v1 · doi: 10.48550/arxiv.astro-ph/0411640 · pith_short_12: Y55CK7ZMH7FK · pith_short_16: Y55CK7ZMH7FKJ6FN · pith_short_8: Y55CK7ZM

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/Y55CK7ZMH7FKJ6FNI65D2E4T3C \
  | 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: c77a257f2c3fcaa4f8ad47ba3d1393d8a6482742d96a41a5814e45be02cefb65

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b02174979909fe5ca75e20b82c91d741c623ce3fbeca9718955848c98bf92852",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-11-23T16:58:45Z",
    "title_canon_sha256": "20e96646349e442bbfdb80e7e2f44398dd8e476025e224c9d5b47c05ef62a009"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0411640",
    "kind": "arxiv",
    "version": 1
  }
}