Pith Number

pith:NR5ON2OK

pith:2008:NR5ON2OK6WVIAZVW7NFX6JXOY4

not attested not anchored not stored refs pending

Testing Mass Loss in Large Magellanic Cloud Cepheids using Infrared and Optical Observations

Chow-Choong Ngeow (UIUC), Hilding R. Neilson (University of Toronto), John B. Lester (University of Toronto Mississauga), Shashi M. Kanbur (SUNY Oswego)

arxiv:0810.3001 v1 · 2008-10-16 · 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{NR5ON2OK6WVIAZVW7NFX6JXOY4}

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	2026-05-18T04:29:25.944202Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c7ae6e9caf5aa8066b6fb4b7f26eec72f812a4bc9b477ef97c85cd405f48efd

Aliases

arxiv: 0810.3001 · arxiv_version: 0810.3001v1 · doi: 10.48550/arxiv.0810.3001 · pith_short_12: NR5ON2OK6WVI · pith_short_16: NR5ON2OK6WVIAZVW · pith_short_8: NR5ON2OK

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/NR5ON2OK6WVIAZVW7NFX6JXOY4 \
  | 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: 6c7ae6e9caf5aa8066b6fb4b7f26eec72f812a4bc9b477ef97c85cd405f48efd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "04fe5382dd25eb8c0381f3cff4a3fade9a6ad22d064ad4c64832125566abd0fe",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-10-16T23:05:29Z",
    "title_canon_sha256": "c38e01e489a974b4f60851908f6359cd59f9f324fad3a51b85c9e0ed38373655"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0810.3001",
    "kind": "arxiv",
    "version": 1
  }
}