Pith Number

pith:N5DH2QZP

pith:2009:N5DH2QZP2NLK4HI2FV7GERY2WF

not attested not anchored not stored refs pending

Structure of the outer layers of cool standard stars

B. Ali, B. Butler, C.D. Dowell, E. Bauwens, G. Raskin, J.A.D.L. Blommaert, K. Eriksson, L. Decin, S. Dehaes

arxiv:0905.1240 v1 · 2009-05-08 · 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{N5DH2QZP2NLK4HI2FV7GERY2WF}

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	2026-05-18T00:36:33.869880Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6f467d432fd356ae1d1a2d7e62471ab15eb049c9a9938c80a1d49265269054e2

Aliases

arxiv: 0905.1240 · arxiv_version: 0905.1240v1 · doi: 10.48550/arxiv.0905.1240 · pith_short_12: N5DH2QZP2NLK · pith_short_16: N5DH2QZP2NLK4HI2 · pith_short_8: N5DH2QZP

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/N5DH2QZP2NLK4HI2FV7GERY2WF \
  | 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: 6f467d432fd356ae1d1a2d7e62471ab15eb049c9a9938c80a1d49265269054e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f14c40a87edf7ededfdcd1e8bffc292207a03db4060ee2b545bf40d1a00f388f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-05-08T11:49:42Z",
    "title_canon_sha256": "6df221502d62e82c4469aacadde328115109dab56258db0f10c7234f5551fc9e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.1240",
    "kind": "arxiv",
    "version": 1
  }
}