Pith Number

pith:KBLZX3MU

pith:2012:KBLZX3MUIZDK74WS2EZQXSFSD4

not attested not anchored not stored refs pending

V1820 Orionis : an RR Lyrae star with strong and irregular Blazhko effect

Franz-Josef Hambsch, Kenneth Menzies, Patrick Wils, Pierre de Ponthiere, Tom Krajci

arxiv:1212.0897 v1 · 2012-12-04 · 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{KBLZX3MUIZDK74WS2EZQXSFSD4}

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	2026-05-18T03:39:07.005631Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

50579bed944646aff2d2d1330bc8b21f1eeebbe4f465bafce009b153fe5695b5

Aliases

arxiv: 1212.0897 · arxiv_version: 1212.0897v1 · doi: 10.48550/arxiv.1212.0897 · pith_short_12: KBLZX3MUIZDK · pith_short_16: KBLZX3MUIZDK74WS · pith_short_8: KBLZX3MU

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/KBLZX3MUIZDK74WS2EZQXSFSD4 \
  | 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: 50579bed944646aff2d2d1330bc8b21f1eeebbe4f465bafce009b153fe5695b5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "250d9aa99141a2734f1029e00f790e73eba0a401fcd352814f818e3339452111",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-12-04T22:34:22Z",
    "title_canon_sha256": "fb0a0115b77d420d1801333e07a126d4140c6bfcb9868f6319bc0ca130d6df27"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.0897",
    "kind": "arxiv",
    "version": 1
  }
}