Pith Number

pith:QG3ML3MV

pith:2009:QG3ML3MVMCFDZNHCAXVVZZKA3R

not attested not anchored not stored refs pending

Towards a library of synthetic galaxy spectra and preliminary results of classification and parametrization of unresolved galaxies for Gaia - II

A. Dapergolas, A. Vallenari, B. Rocca-Volmerange, C.A.L. Bailer-Jones, E. Kontizas, E. Livanou, I. Bellas-Velidis, M. Fioc, M. Kontizas, P. Tsalmantza, R. Korakitis

arxiv:0907.1671 v1 · 2009-07-09 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QG3ML3MVMCFDZNHCAXVVZZKA3R}

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	2026-05-18T02:13:04.103743Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81b6c5ed95608a3cb4e205eb5ce540dc48aa40755d32131432325918f6c09829

Aliases

arxiv: 0907.1671 · arxiv_version: 0907.1671v1 · doi: 10.48550/arxiv.0907.1671 · pith_short_12: QG3ML3MVMCFD · pith_short_16: QG3ML3MVMCFDZNHC · pith_short_8: QG3ML3MV

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/QG3ML3MVMCFDZNHCAXVVZZKA3R \
  | 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: 81b6c5ed95608a3cb4e205eb5ce540dc48aa40755d32131432325918f6c09829

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7a342624534610d77fa05486713ff3c312592a516090f3906fabf3c62fb0a432",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-07-09T20:36:15Z",
    "title_canon_sha256": "db20d737175a01a289461ce1a17933abbd3bc807dc4df117e95e03f14de9bf47"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.1671",
    "kind": "arxiv",
    "version": 1
  }
}