Pith Number

pith:2F7RK5PF

pith:2012:2F7RK5PFXPNOOQ55PAO573LCIK

not attested not anchored not stored refs pending

Type 1 low z AGN. I. Emission properties

Ari Laor, Jonathan Stern

arxiv:1203.3158 v1 · 2012-03-14 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2F7RK5PFXPNOOQ55PAO573LCIK}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:58:08.765488Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d17f1575e5bbdae743bd781ddfed6242bc825d96e416a274bb71ef348df1f79b

Aliases

arxiv: 1203.3158 · arxiv_version: 1203.3158v1 · doi: 10.48550/arxiv.1203.3158 · pith_short_12: 2F7RK5PFXPNO · pith_short_16: 2F7RK5PFXPNOOQ55 · pith_short_8: 2F7RK5PF

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/2F7RK5PFXPNOOQ55PAO573LCIK \
  | 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: d17f1575e5bbdae743bd781ddfed6242bc825d96e416a274bb71ef348df1f79b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "abe58a06f38863e845db8aec2bb032033821e7d859224f9601c87d9a783dda73",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-03-14T17:57:42Z",
    "title_canon_sha256": "39a1f5ab3dc3e50173a796cdad26a0efa1117f9c15ff6c87e7970df7c27a6091"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.3158",
    "kind": "arxiv",
    "version": 1
  }
}