Pith Number

pith:3F63CFFN

pith:2018:3F63CFFNSXYFQKZNMFHP3NYNB7

not attested not anchored not stored refs pending

The 2018 Census of Luminous Blue Variables

Andrea Mehner, Noel D. Richardson

arxiv:1807.04262 v1 · 2018-07-11 · 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{3F63CFFNSXYFQKZNMFHP3NYNB7}

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	2026-05-18T00:02:22.212492Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d97db114ad95f0582b2d614efdb70d0fd37b060937d2bdc2fc3c4d5b70a1f283

Aliases

arxiv: 1807.04262 · arxiv_version: 1807.04262v1 · doi: 10.48550/arxiv.1807.04262 · pith_short_12: 3F63CFFNSXYF · pith_short_16: 3F63CFFNSXYFQKZN · pith_short_8: 3F63CFFN

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/3F63CFFNSXYFQKZNMFHP3NYNB7 \
  | 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: d97db114ad95f0582b2d614efdb70d0fd37b060937d2bdc2fc3c4d5b70a1f283

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4ec14f1ca54de78e5467dedb15c6e2027d24ad81290957f25fc91207c488737f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-07-11T17:53:06Z",
    "title_canon_sha256": "0f1685e0c6bb82c6ee74ec86f02a874a39edb4264776d6e0dd9db85addf0aa46"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.04262",
    "kind": "arxiv",
    "version": 1
  }
}