Pith Number

pith:LOSLUGRD

pith:2009:LOSLUGRDIIXIG5AMQ5Z6MIOCDA

not attested not anchored not stored refs pending

The old and heavy bulge of M31 I. Kinematics and stellar populations

A. Riffeser, C.-H. Lee, L. Morganti, M. Fabricius, M. Montalto, O. Gerhard, R. Bender, R.P. Saglia, S. Seitz, U. Hopp

arxiv:0910.5590 v1 · 2009-10-29 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LOSLUGRDIIXIG5AMQ5Z6MIOCDA}

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	2026-05-18T02:11:01.824780Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5ba4ba1a23422e83740c8773e621c21826c5214613a2d88d138f397429ba174e

Aliases

arxiv: 0910.5590 · arxiv_version: 0910.5590v1 · doi: 10.48550/arxiv.0910.5590 · pith_short_12: LOSLUGRDIIXI · pith_short_16: LOSLUGRDIIXIG5AM · pith_short_8: LOSLUGRD

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/LOSLUGRDIIXIG5AMQ5Z6MIOCDA \
  | 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: 5ba4ba1a23422e83740c8773e621c21826c5214613a2d88d138f397429ba174e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2af759b9164a2d90260e776cf2a126536f77998bdeea3947015a0200ee33f08c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-10-29T09:29:44Z",
    "title_canon_sha256": "8696da7868264a644cc2979ff30280545bf471c7d666c9a9e4acbaf157ef0fb9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.5590",
    "kind": "arxiv",
    "version": 1
  }
}