Pith Number

pith:5OUCADZ5

pith:2002:5OUCADZ5VD6V4LKULX2LT2PYID

not attested not anchored not stored refs pending

Is a minor-merger driving the nuclear activity in the Seyfert 2 galaxy NGC 2110?

Enrique Perez & Timothy Heckman, Rosa M. Gonzalez Delgado, Santiago Arribas

arxiv:astro-ph/0207275 v1 · 2002-07-12 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5OUCADZ5VD6V4LKULX2LT2PYID}

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	2026-07-04T16:30:22.082966Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eba8200f3da8fd5e2d545df4b9e9f840c6f2a4025e8f8bdb797b3434a1e3c9c8

Aliases

arxiv: astro-ph/0207275 · arxiv_version: astro-ph/0207275v1 · doi: 10.48550/arxiv.astro-ph/0207275 · pith_short_12: 5OUCADZ5VD6V · pith_short_16: 5OUCADZ5VD6V4LKU · pith_short_8: 5OUCADZ5

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/5OUCADZ5VD6V4LKULX2LT2PYID \
  | 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: eba8200f3da8fd5e2d545df4b9e9f840c6f2a4025e8f8bdb797b3434a1e3c9c8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d394e94e75bac5e1b737761460044c96bc2438f763caaadce97648b79d21010b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-07-12T14:10:26Z",
    "title_canon_sha256": "c3abd1fbcf0f8e21d4d103c1e96845dc25aad48c9805de8b5d99e5b9c6fba88b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0207275",
    "kind": "arxiv",
    "version": 1
  }
}