Pith Number

pith:Z65MED4R

pith:2018:Z65MED4RLVHZBXYQC5EKYIUR6E

not attested not anchored not stored refs pending

A Study of Pulsation and Fadings in some R Coronae Borealis Stars

John R. Percy, Kevin H. Dembski

arxiv:1809.04484 v2 · 2018-09-12 · 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{Z65MED4RLVHZBXYQC5EKYIUR6E}

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	2026-05-18T00:05:21.297269Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cfbac20f915d4f90df101748ac2291f126a8192a614f56d0d3b23b33ba822d4c

Aliases

arxiv: 1809.04484 · arxiv_version: 1809.04484v2 · doi: 10.48550/arxiv.1809.04484 · pith_short_12: Z65MED4RLVHZ · pith_short_16: Z65MED4RLVHZBXYQ · pith_short_8: Z65MED4R

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/Z65MED4RLVHZBXYQC5EKYIUR6E \
  | 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: cfbac20f915d4f90df101748ac2291f126a8192a614f56d0d3b23b33ba822d4c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8b27a993b48aaf4f8fde18a3ce3a73edc05aacb7dafae937d6e8f1b1f8145d85",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-09-12T14:31:33Z",
    "title_canon_sha256": "dab19ecaf197dbbea11c4ff113231ce63b4f03ac46117d353cef0a1f02c27f4e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.04484",
    "kind": "arxiv",
    "version": 2
  }
}