Pith Number

pith:WYG66SI5

pith:2013:WYG66SI5LD6AIS5FLJIMAMNKJP

not attested not anchored not stored refs pending

Spectral properties of a sample of type 1 AGNs: influence of star formation

Jelena Kovacevic, Luka C. Popovic, Milan S. Dimitrijevic

arxiv:1301.6941 v2 · 2013-01-29 · 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{WYG66SI5LD6AIS5FLJIMAMNKJP}

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	2026-05-18T03:19:04.469645Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b60def491d58fc044ba55a50c031aa4bd2e2988cce8340234bcff462c9cdec6c

Aliases

arxiv: 1301.6941 · arxiv_version: 1301.6941v2 · doi: 10.48550/arxiv.1301.6941 · pith_short_12: WYG66SI5LD6A · pith_short_16: WYG66SI5LD6AIS5F · pith_short_8: WYG66SI5

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/WYG66SI5LD6AIS5FLJIMAMNKJP \
  | 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: b60def491d58fc044ba55a50c031aa4bd2e2988cce8340234bcff462c9cdec6c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5507e881a010eed55f37d640a71c5e34b1feecd899b926466e539c3ff54b0140",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-01-29T15:03:00Z",
    "title_canon_sha256": "3607f386c5186547436dfbf1d363014ef752fec7b5dd4d94c650b3597da463b8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.6941",
    "kind": "arxiv",
    "version": 2
  }
}