Pith Number

pith:EUXDDSLR

pith:2009:EUXDDSLRXL45CZJZD2M3ALBWO3

not attested not anchored not stored refs pending

M31 Globular Cluster Abundances from High-Resolution, Integrated-Light Spectroscopy

2), (2) UCO/Lick Observatory, (3) Carnegie Observatories, (4) Caltech), A. McWilliam (3), Ann Arbor, J. E. Colucci (1, J. G. Cohen (4) ((1) U. of Michigan, R. A. Bernstein (2), S. Cameron (1), UC Santa Cruz

arxiv:0908.3899 v1 · 2009-08-26 · astro-ph.GA

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

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	2026-05-18T02:12:22.506641Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

252e31c971baf9d165391e99b02c3676e827025282f3fdcac1917f6da4e05626

Aliases

arxiv: 0908.3899 · arxiv_version: 0908.3899v1 · doi: 10.48550/arxiv.0908.3899 · pith_short_12: EUXDDSLRXL45 · pith_short_16: EUXDDSLRXL45CZJZ · pith_short_8: EUXDDSLR

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/EUXDDSLRXL45CZJZD2M3ALBWO3 \
  | 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: 252e31c971baf9d165391e99b02c3676e827025282f3fdcac1917f6da4e05626

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "79831de45d0114ce94d2f4f1ae1bd90a3a64e9087f32aa66652b7d7fdfa2fea9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-08-26T20:27:36Z",
    "title_canon_sha256": "99d725766aece0dcbbd8b1601a56abe34f7f00003c37981fe737afaa0a761744"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.3899",
    "kind": "arxiv",
    "version": 1
  }
}