Pith Number

pith:3YQZ23FX

pith:2011:3YQZ23FXW7DZTEXQ7M2WALLTPG

not attested not anchored not stored refs pending

Detection of high-frequency variability in chromospherically active stars

A.V. Sergeev, B.E. Zhilyaev, M.V. Andreev

arxiv:1109.5207 v1 · 2011-09-23 · 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{3YQZ23FXW7DZTEXQ7M2WALLTPG}

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	2026-05-18T04:12:20.374054Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

de219d6cb7b7c79992f0fb35602d7379811a92de46fc5f0cd0ea79bc84767a11

Aliases

arxiv: 1109.5207 · arxiv_version: 1109.5207v1 · doi: 10.48550/arxiv.1109.5207 · pith_short_12: 3YQZ23FXW7DZ · pith_short_16: 3YQZ23FXW7DZTEXQ · pith_short_8: 3YQZ23FX

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/3YQZ23FXW7DZTEXQ7M2WALLTPG \
  | 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: de219d6cb7b7c79992f0fb35602d7379811a92de46fc5f0cd0ea79bc84767a11

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7d21a852d00942e756b3cd7aa2340bc77e139347375f20d19d8a380c783193b7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-09-23T22:14:43Z",
    "title_canon_sha256": "ab1857266e09309b36c7ddef3aa47ed6babe8b6cea96c141fa41dd70f923b0d2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.5207",
    "kind": "arxiv",
    "version": 1
  }
}