Pith Number

pith:O4MOI5KB

pith:2012:O4MOI5KBCGYGSTBP3FTB6GT5IB

not attested not anchored not stored refs pending

Type 1 AGN at low z. II. The relative strength of narrow lines and the nature of intermediate type AGN

Ari Laor, Jonathan Stern

arxiv:1207.5543 v1 · 2012-07-23 · 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{O4MOI5KBCGYGSTBP3FTB6GT5IB}

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	2026-05-18T01:56:08.727269Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7718e4754111b0694c2fd9661f1a7d404722c24bca798c4e1a86ca474b29440c

Aliases

arxiv: 1207.5543 · arxiv_version: 1207.5543v1 · doi: 10.48550/arxiv.1207.5543 · pith_short_12: O4MOI5KBCGYG · pith_short_16: O4MOI5KBCGYGSTBP · pith_short_8: O4MOI5KB

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/O4MOI5KBCGYGSTBP3FTB6GT5IB \
  | 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: 7718e4754111b0694c2fd9661f1a7d404722c24bca798c4e1a86ca474b29440c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2e5c6a36778a9fed6a916d9c88ae6e1584ed06a0b9217bd706aaaadf492ababb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-07-23T21:36:12Z",
    "title_canon_sha256": "bb5d1595c2a8b9ffd0279ebe129d51e8e9c60d3c6e8da27d4ee239043e699fe0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.5543",
    "kind": "arxiv",
    "version": 1
  }
}