Pith Number

pith:MCOS2BZ7

pith:2016:MCOS2BZ7XI5YAAJQFTOXGQHOUG

not attested not anchored not stored refs pending

HD 240121 - an ACV variable showing anti-phase variations of the B and V light curves

2), 2) ((1) Bundesdeutsche Arbeitsgemeinschaft f\"ur Ver\"anderliche Sterne e.V. (BAV), (2) American Association of Variable Star Observers (AAVSO), (3) Department of Theoretical Physics, Astrophysics, Berlin, Brno, Cambridge, Czech Republic), Ernst Paunzen (3), Germany, Klaus Bernhard (1, Masaryk University, Rainer Gr\"obel (1), Stefan H\"ummerich (1, USA

arxiv:1609.00355 v1 · 2016-09-01 · 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{MCOS2BZ7XI5YAAJQFTOXGQHOUG}

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	2026-05-18T01:06:25.097612Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

609d2d073fba3b8001302cdd7340eea1bc3a56591806e7ebf061221cbcd5741d

Aliases

arxiv: 1609.00355 · arxiv_version: 1609.00355v1 · doi: 10.48550/arxiv.1609.00355 · pith_short_12: MCOS2BZ7XI5Y · pith_short_16: MCOS2BZ7XI5YAAJQ · pith_short_8: MCOS2BZ7

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/MCOS2BZ7XI5YAAJQFTOXGQHOUG \
  | 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: 609d2d073fba3b8001302cdd7340eea1bc3a56591806e7ebf061221cbcd5741d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e199624a588cf080aeb05e10906861ae0dc59e33c20852195c1484be1c4c32fd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2016-09-01T19:26:52Z",
    "title_canon_sha256": "3bf1093bca0beec118c39581f392e7065bef285aa7d175175444a838d0f7c2c1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.00355",
    "kind": "arxiv",
    "version": 1
  }
}