Pith Number

pith:GFL2S4TB

pith:2014:GFL2S4TBGFEFSLVR5Z7HMXPYD2

not attested not anchored not stored refs pending

The occurrence of classical Cepheids in binary systems

Fabian R.N. Schneider, Hilding R. Neilson, Nancy R. Evans, Norbert Langer, Robert G. Izzard

arxiv:1412.3468 v1 · 2014-12-10 · astro-ph.SR

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

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	2026-05-18T01:41:19.956281Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3157a972613148592eb1ee7e765df81e96fd8b96251666a8102f2cde83650c08

Aliases

arxiv: 1412.3468 · arxiv_version: 1412.3468v1 · doi: 10.48550/arxiv.1412.3468 · pith_short_12: GFL2S4TBGFEF · pith_short_16: GFL2S4TBGFEFSLVR · pith_short_8: GFL2S4TB

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/GFL2S4TBGFEFSLVR5Z7HMXPYD2 \
  | 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: 3157a972613148592eb1ee7e765df81e96fd8b96251666a8102f2cde83650c08

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8412f8a922a89867a630c858f2502288848624a31e18851305605a5f175831dc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2014-12-10T21:03:53Z",
    "title_canon_sha256": "a7be00838b64839301e84dc957c570fe6420b9c8655f6b5e74c17fc1cb99883e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.3468",
    "kind": "arxiv",
    "version": 1
  }
}