Pith Number

pith:R3JSJV5Z

pith:2012:R3JSJV5ZGHOMF34TY2RRI4SVSX

not attested not anchored not stored refs pending

Estimation of the Galactic Spiral Pattern Speed from Cepheids

A.T. Bajkova, V.V. Bobylev

arxiv:1212.4750 v1 · 2012-12-19 · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{R3JSJV5ZGHOMF34TY2RRI4SVSX}

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	2026-05-18T03:38:05.460052Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8ed324d7b931dcc2ef93c6a314725595e030b8f310b50510e6a8552d958f2aed

Aliases

arxiv: 1212.4750 · arxiv_version: 1212.4750v1 · doi: 10.48550/arxiv.1212.4750 · pith_short_12: R3JSJV5ZGHOM · pith_short_16: R3JSJV5ZGHOMF34T · pith_short_8: R3JSJV5Z

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/R3JSJV5ZGHOMF34TY2RRI4SVSX \
  | 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: 8ed324d7b931dcc2ef93c6a314725595e030b8f310b50510e6a8552d958f2aed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a2b6a03de6461d8671cb55c492383a10934e2e581831541478896e57505c434c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-12-19T17:20:44Z",
    "title_canon_sha256": "dcebff4c282879a953e7092011cb2ece883155cbf60fd93acc086fa676de9fa6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.4750",
    "kind": "arxiv",
    "version": 1
  }
}