Pith Number

pith:YPSNZK4W

pith:2017:YPSNZK4W5TDUEH6C7BGWFWRKHK

not attested not anchored not stored refs pending

HD 46487 is Now a Classical Be Star

David G. Whelan, R. David Baker

arxiv:1705.09067 v1 · 2017-05-25 · 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{YPSNZK4W5TDUEH6C7BGWFWRKHK}

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	2026-05-18T00:43:40.504379Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c3e4dcab96ecc7421fc2f84d62da2a3ab15fc40c057ebfe6b39d3eea4b579023

Aliases

arxiv: 1705.09067 · arxiv_version: 1705.09067v1 · doi: 10.48550/arxiv.1705.09067 · pith_short_12: YPSNZK4W5TDU · pith_short_16: YPSNZK4W5TDUEH6C · pith_short_8: YPSNZK4W

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/YPSNZK4W5TDUEH6C7BGWFWRKHK \
  | 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: c3e4dcab96ecc7421fc2f84d62da2a3ab15fc40c057ebfe6b39d3eea4b579023

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "408822830143ac25f64af3d8b627d7afbb4104f782fbd630efa0490055702401",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2017-05-25T06:53:39Z",
    "title_canon_sha256": "d8ee38295c65ddae93ffc3681d0b18931263ac9815fcec8b7562d59ed715a36d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.09067",
    "kind": "arxiv",
    "version": 1
  }
}