Pith Number

pith:7SMYPADE

pith:2012:7SMYPADEPCAC3GWDYW6IMSVK23

not attested not anchored not stored refs pending

Detection of Low-Level Activities in Solar-Analog Stars from the Emission Strengths of Ca II 3934 Line

Akito Tajitsu, Hiroyasu Ando, Satoshi Honda, Satoshi Kawanomoto, Takashi Sakurai, Yoichi Takeda

arxiv:1207.0176 v1 · 2012-07-01 · 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{7SMYPADEPCAC3GWDYW6IMSVK23}

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	2026-05-18T03:52:00.022776Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc9987806478802d9ac3c5bc864aaad6ed4cc3d83be46688d62fbd02b37971b6

Aliases

arxiv: 1207.0176 · arxiv_version: 1207.0176v1 · doi: 10.48550/arxiv.1207.0176 · pith_short_12: 7SMYPADEPCAC · pith_short_16: 7SMYPADEPCAC3GWD · pith_short_8: 7SMYPADE

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/7SMYPADEPCAC3GWDYW6IMSVK23 \
  | 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: fc9987806478802d9ac3c5bc864aaad6ed4cc3d83be46688d62fbd02b37971b6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1f4e3b5d34551d542f19f0e3174a955a67b418b022f7f1ddad7c6c268914c38e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-07-01T03:23:50Z",
    "title_canon_sha256": "721e7d1bdd27f38eca340a7d2f87a68ce6510c3fa9b5824c70cb10e0dce814d4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.0176",
    "kind": "arxiv",
    "version": 1
  }
}