Pith Number

pith:XLZTET66

pith:2009:XLZTET66CU57RY57MFWIJ2FAOC

not attested not anchored not stored refs pending

Physical Properties of Red Supergiants

Emily Levesque

arxiv:0902.2789 v2 · 2009-02-16 · 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{XLZTET66CU57RY57MFWIJ2FAOC}

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	2026-05-18T02:35:01.088057Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

baf3324fde153bf8e3bf616c84e8a070930f651e42bb2e0979d2b9ecdd7be36a

Aliases

arxiv: 0902.2789 · arxiv_version: 0902.2789v2 · doi: 10.48550/arxiv.0902.2789 · pith_short_12: XLZTET66CU57 · pith_short_16: XLZTET66CU57RY57 · pith_short_8: XLZTET66

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/XLZTET66CU57RY57MFWIJ2FAOC \
  | 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: baf3324fde153bf8e3bf616c84e8a070930f651e42bb2e0979d2b9ecdd7be36a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "61fbcd6f54ab7d3e8e7f199ac2088661b1590a0e92a3edc56a11797c4d942533",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-02-16T21:18:02Z",
    "title_canon_sha256": "9c92a1a22318290ce3394bbcc7f2f0acf87d64fe5f0e8c373a7b29b3ba9ffe6e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.2789",
    "kind": "arxiv",
    "version": 2
  }
}