Pith Number

pith:QBYH2ADQ

pith:2008:QBYH2ADQQOL24EMUPLF2TLXSW7

not attested not anchored not stored refs pending

Near-Infrared spectral diagnostics for unresolved stellar population galaxies

L. Morelli, M. Cesetti, V. D. Ivanov

arxiv:0809.2112 v1 · 2008-09-11 · astro-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{QBYH2ADQQOL24EMUPLF2TLXSW7}

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	2026-07-04T15:14:16.450140Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80707d00708397ae11947acba9aef2b7e9962a3d5f32385bf1a487b4ccd52bf3

Aliases

arxiv: 0809.2112 · arxiv_version: 0809.2112v1 · doi: 10.48550/arxiv.0809.2112 · pith_short_12: QBYH2ADQQOL2 · pith_short_16: QBYH2ADQQOL24EMU · pith_short_8: QBYH2ADQ

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/QBYH2ADQQOL24EMUPLF2TLXSW7 \
  | 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: 80707d00708397ae11947acba9aef2b7e9962a3d5f32385bf1a487b4ccd52bf3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c2d95c32ee7b17c480fbdff0ea6313a8f00cda9e38fc0dd4bc995402c4ad4c8c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-09-11T22:37:00Z",
    "title_canon_sha256": "bac748e6d4a8fa9ea07bdcb46ac1346b6d357c2dbfd725352cb3b61f0366a08f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.2112",
    "kind": "arxiv",
    "version": 1
  }
}