Pith Number

pith:O5EPKML5

pith:2009:O5EPKML5Y4GOFFD22USJEB44X2

not attested not anchored not stored refs pending

Near-Infrared Spectroscopy of Seyfert Galaxies. Nuclear Activity and Stellar Population

Ana Maria Perez Garcia, Cristina Ramos Almeida, Jose Antonio Acosta Pulido

arxiv:0901.0999 v1 · 2009-01-08 · 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{O5EPKML5Y4GOFFD22USJEB44X2}

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.

Cited by

1 paper in Pith

The Accretion Process on Protostars

Receipt and verification

First computed	2026-05-18T04:29:24.073783Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7748f5317dc70ce2947ad52492079cbebf7ec526070267b7e33c03a3ba8d4e20

Aliases

arxiv: 0901.0999 · arxiv_version: 0901.0999v1 · doi: 10.48550/arxiv.0901.0999 · pith_short_12: O5EPKML5Y4GO · pith_short_16: O5EPKML5Y4GOFFD2 · pith_short_8: O5EPKML5

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/O5EPKML5Y4GOFFD22USJEB44X2 \
  | 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: 7748f5317dc70ce2947ad52492079cbebf7ec526070267b7e33c03a3ba8d4e20

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8092be0a98e6ce56f2469baf48f7604294062119d6a8947396428a45df7ea274",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-01-08T09:51:18Z",
    "title_canon_sha256": "ddea7f1006bd31475af122a4ed56a38af2d8adbc5fb55bc0f7ecd44ccc0b920e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.0999",
    "kind": "arxiv",
    "version": 1
  }
}