Pith Number

pith:SVLK6ZLQ

pith:2026:SVLK6ZLQVMDCN3KKCLFKF2MJ3G

not attested not anchored not stored refs pending

Origin of the Long-Period Radial Velocity Variation in the Red Supergiant HD 216946 (V424 Lac)

Byeong-Cheol Lee, Myeong-Gu Park

arxiv:2607.19812 v1 · 2026-07-22 · 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{SVLK6ZLQVMDCN3KKCLFKF2MJ3G}

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	2026-07-23T01:24:00.609185Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9556af6570ab0626ed4a12caa2e989d98064cc3c16e59d8f7367e9f35a51efaa

Aliases

arxiv: 2607.19812 · arxiv_version: 2607.19812v1 · doi: 10.48550/arxiv.2607.19812 · pith_short_12: SVLK6ZLQVMDC · pith_short_16: SVLK6ZLQVMDCN3KK · pith_short_8: SVLK6ZLQ

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/SVLK6ZLQVMDCN3KKCLFKF2MJ3G \
  | 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: 9556af6570ab0626ed4a12caa2e989d98064cc3c16e59d8f7367e9f35a51efaa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "513fcd1fd40aec4f025b45f5f50eedd277f065bc155773dcc5d7fa58e9c5a129",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2026-07-22T06:45:25Z",
    "title_canon_sha256": "18ad3db4e253ab329708588f3037c1bb8aaceb80edee48f10fce8b2d30139921"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.19812",
    "kind": "arxiv",
    "version": 1
  }
}