Pith Number

pith:N5SDO7MK

pith:2010:N5SDO7MKX6DJO7SFT4DBR7R2AF

not attested not anchored not stored refs pending

Teaching Astronomy with an Inquiry Activity on Stellar Populations

Elisabeth Mills, Genevieve J. Graves, Katherine A. Kretke, Marc Rafelski, Michael Foley, Michael Nassir, Shannon Patel

arxiv:1009.5404 v1 · 2010-09-27 · astro-ph.IM · astro-ph.SR · physics.ed-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{N5SDO7MKX6DJO7SFT4DBR7R2AF}

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	2026-05-18T03:49:10.587235Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6f64377d8abf86977e459f0618fe3a01464ddf8d04ab4d82cdc5e605508ffbf9

Aliases

arxiv: 1009.5404 · arxiv_version: 1009.5404v1 · doi: 10.48550/arxiv.1009.5404 · pith_short_12: N5SDO7MKX6DJ · pith_short_16: N5SDO7MKX6DJO7SF · pith_short_8: N5SDO7MK

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/N5SDO7MKX6DJO7SFT4DBR7R2AF \
  | 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: 6f64377d8abf86977e459f0618fe3a01464ddf8d04ab4d82cdc5e605508ffbf9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0ffb4bc0bb73ee01aeb236d2562a997f11600c95101e25d6b7f8ee59f14d0369",
    "cross_cats_sorted": [
      "astro-ph.SR",
      "physics.ed-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2010-09-27T21:47:12Z",
    "title_canon_sha256": "0b1e01e743e51290c96414117249e2df416e79e3b618454d1818956988d94015"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.5404",
    "kind": "arxiv",
    "version": 1
  }
}