Pith Number

pith:IELZZBPZ

pith:2009:IELZZBPZMETNNGTDYC3RAJKLN2

not attested not anchored not stored refs pending

Activity on the M star of QS Vir

C. Tappert, R. Baptista, S. Kafka, T. Ribeiro

arxiv:0912.0912 v1 · 2009-12-04 · 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{IELZZBPZMETNNGTDYC3RAJKLN2}

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	2026-07-04T17:21:18.360727Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

41179c85f96126d69a63c0b710254b6eb4628940f0c9f7e5b95545738048e830

Aliases

arxiv: 0912.0912 · arxiv_version: 0912.0912v1 · doi: 10.48550/arxiv.0912.0912 · pith_short_12: IELZZBPZMETN · pith_short_16: IELZZBPZMETNNGTD · pith_short_8: IELZZBPZ

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/IELZZBPZMETNNGTDYC3RAJKLN2 \
  | 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: 41179c85f96126d69a63c0b710254b6eb4628940f0c9f7e5b95545738048e830

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3ad0383d5e4624ddc34b534449a6a63b1dfb22913fe1df258c0f2b6fc2342ede",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-12-04T18:37:43Z",
    "title_canon_sha256": "be636df7bf89e95a91d061f1ed2ccb458d3fb73d04a3392d6f4809f585704b81"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.0912",
    "kind": "arxiv",
    "version": 1
  }
}