Pith Number

pith:BIDUOD3S

pith:2026:BIDUOD3SINLXD2EFQ2TS6DK6JE

not attested not anchored not stored refs pending

Six decades of TIGRE and Mount Wilson chromospheric monitoring in the H and K lines: The quest for an understanding of solar-type activity

A. Hempelmann, Dennis Jack, J. H. M. M. Schmitt, J. N. Gonz\'alez-P\'erez, K.-P. Schr\"oder, M. Mittag

arxiv:2606.26283 v1 · 2026-06-24 · 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{BIDUOD3SINLXD2EFQ2TS6DK6JE}

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	2026-06-26T00:15:34.541649Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0a07470f72435771e88586a72f0d5e4927291c244f939de3e4202611615a788f

Aliases

arxiv: 2606.26283 · arxiv_version: 2606.26283v1 · doi: 10.48550/arxiv.2606.26283 · pith_short_12: BIDUOD3SINLX · pith_short_16: BIDUOD3SINLXD2EF · pith_short_8: BIDUOD3S

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/BIDUOD3SINLXD2EFQ2TS6DK6JE \
  | 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: 0a07470f72435771e88586a72f0d5e4927291c244f939de3e4202611615a788f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e2438f680c7001bda149e3eb82b98ad69d1040f4fcd946c2667414633d393cfd",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2026-06-24T18:28:42Z",
    "title_canon_sha256": "632d39c098e083639be585003c21e653bb179c5ff0f900b9c43717477a243b25"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.26283",
    "kind": "arxiv",
    "version": 1
  }
}