Pith Number

pith:BVRIN5W3

pith:2008:BVRIN5W3HPVWVTSWHKLLXOKPFO

not attested not anchored not stored refs pending

On the Enhancement of Mass Loss in Cepheids Due to Radial Pulsation. II. The Effect of Metallicity

Hilding R. Neilson (University of Toronto), John B. Lester (University of Toronto Mississauga)

arxiv:0809.2793 v1 · 2008-09-16 · astro-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BVRIN5W3HPVWVTSWHKLLXOKPFO}

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	2026-05-18T04:29:32.690983Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0d6286f6db3beb6ace563a96bbb94f2b80a84038db73f6d77b06a68827a56cb1

Aliases

arxiv: 0809.2793 · arxiv_version: 0809.2793v1 · doi: 10.48550/arxiv.0809.2793 · pith_short_12: BVRIN5W3HPVW · pith_short_16: BVRIN5W3HPVWVTSW · pith_short_8: BVRIN5W3

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/BVRIN5W3HPVWVTSWHKLLXOKPFO \
  | 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: 0d6286f6db3beb6ace563a96bbb94f2b80a84038db73f6d77b06a68827a56cb1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "719e0c94a137e20f78e22068c6cee09bffa35b7147660780ff58486e8be2f222",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-09-16T20:10:56Z",
    "title_canon_sha256": "e1bc637853359abce81a7e0b6dc6ecc9cbf4d7dd48a8f2bdfb0c42fa4372a40f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.2793",
    "kind": "arxiv",
    "version": 1
  }
}