Pith Number

pith:HXUMLNW5

pith:2009:HXUMLNW5HLWSXQJN3WNO5AXBQI

not attested not anchored not stored refs pending

Characteristics of the Galaxy according to Cepheids

Daniel J. Majaess, David G. Turner, David J. Lane

arxiv:0903.4206 v2 · 2009-03-25 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HXUMLNW5HLWSXQJN3WNO5AXBQI}

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	2026-05-18T02:35:00.183643Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3de8c5b6dd3aed2bc12ddd9aee82e1821ea4fdb2eb71bcaa4daac8682d19ef22

Aliases

arxiv: 0903.4206 · arxiv_version: 0903.4206v2 · doi: 10.48550/arxiv.0903.4206 · pith_short_12: HXUMLNW5HLWS · pith_short_16: HXUMLNW5HLWSXQJN · pith_short_8: HXUMLNW5

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/HXUMLNW5HLWSXQJN3WNO5AXBQI \
  | 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: 3de8c5b6dd3aed2bc12ddd9aee82e1821ea4fdb2eb71bcaa4daac8682d19ef22

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "09395329b416a9c2738182848de635600bbfb6387cd30be2e67a693c6349b148",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-03-25T01:28:55Z",
    "title_canon_sha256": "512787e9c7600deeab38cb1756f26e81cab03d480d1da67598fc44185bc04743"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.4206",
    "kind": "arxiv",
    "version": 2
  }
}