Pith Number

pith:PYAHUXWW

pith:2009:PYAHUXWWE5TDPOHIOSXASETPBV

not attested not anchored not stored refs pending

Probing the stellar population of seyfert galaxies: a near infrared perspective

A. Rodriguez-Ardila, C. Bonatto, M.G. Pastoriza, R. Riffel

arxiv:0909.4312 v1 · 2009-09-23 · 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{PYAHUXWWE5TDPOHIOSXASETPBV}

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	2026-05-18T02:11:38.258275Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e007a5ed6276637b8e874ae09126f0d75640e087d728ad66ca156e11b6fb977

Aliases

arxiv: 0909.4312 · arxiv_version: 0909.4312v1 · doi: 10.48550/arxiv.0909.4312 · pith_short_12: PYAHUXWWE5TD · pith_short_16: PYAHUXWWE5TDPOHI · pith_short_8: PYAHUXWW

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/PYAHUXWWE5TDPOHIOSXASETPBV \
  | 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: 7e007a5ed6276637b8e874ae09126f0d75640e087d728ad66ca156e11b6fb977

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "31fd2478240febfccd86fd72405b50520e3ffb28dbcf4d913d6ac628f40b6c4a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-09-23T20:46:20Z",
    "title_canon_sha256": "c0e6527e226fb64fcc7ade127c124e3df581fb4228f9047ddb4af59e6d59f8ff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.4312",
    "kind": "arxiv",
    "version": 1
  }
}